Fix improper use of "its".

Sponsored by:	Dell EMC Isilon

36 files changed, 40 insertions, 40 deletions

diff --git a/sys/amd64/vmm/io/vlapic.c b/sys/amd64/vmm/io/vlapic.c
index cdf411b288be..c5af6b481cf8 100644
--- a/sys/amd64/vmm/io/vlapic.c
+++ b/sys/amd64/vmm/io/vlapic.c
@@ -859,7 +859,7 @@ vlapic_calcdest(struct vm *vm, cpuset_t *dmask, uint32_t dest, bool phys,
 
 		/*
 		 * Logical mode: match each APIC that has a bit set
-		 * in it's LDR that matches a bit in the ldest.
+		 * in its LDR that matches a bit in the ldest.
 		 */
 		CPU_ZERO(dmask);
 		amask = vm_active_cpus(vm);
diff --git a/sys/arm/include/profile.h b/sys/arm/include/profile.h
index a28f33e90d3b..49769a93ee82 100644
--- a/sys/arm/include/profile.h
+++ b/sys/arm/include/profile.h
@@ -89,7 +89,7 @@ typedef u_long	fptrdiff_t;
 	__asm__("ldmfd	sp!, {r0-r3, lr}");				\
 	/*								\
 	 * Return to the caller. Loading lr and pc in one instruction	\
-	 * is deprecated on ARMv7 so we need this on it's own.		\
+	 * is deprecated on ARMv7 so we need this on its own.		\
 	 */								\
 	__asm__("ldmfd	sp!, {pc}");
 void bintr(void);
diff --git a/sys/arm/ti/omap4/omap4_prcm_clks.c b/sys/arm/ti/omap4/omap4_prcm_clks.c
index 3aa10f675657..782e7ac71111 100644
--- a/sys/arm/ti/omap4/omap4_prcm_clks.c
+++ b/sys/arm/ti/omap4/omap4_prcm_clks.c
@@ -1033,7 +1033,7 @@ omap4_clk_get_arm_fclk_freq(struct ti_clock_dev *clkdev,
  *	The USB clocking setup seems to be a bit more tricky than the other modules,
  *	to start with the clocking diagram for the HS host module shows 13 different
  *	clocks.  So to try and make it easier to follow the clocking activation
- *	and deactivation is handled in it's own set of callbacks.
+ *	and deactivation is handled in its own set of callbacks.
  *
  *	LOCKING:
  *	Inherits the locks from the omap_prcm driver, no internal locking.
diff --git a/sys/arm64/arm64/identcpu.c b/sys/arm64/arm64/identcpu.c
index 6dd548b30d40..97a91da52fa5 100644
--- a/sys/arm64/arm64/identcpu.c
+++ b/sys/arm64/arm64/identcpu.c
@@ -205,7 +205,7 @@ print_cpu_features(u_int cpu)
 	 * https://lkml.org/lkml/2016/8/4/722
 	 */
 	/*
-	 * XXX: CPU_MATCH_ERRATA_CAVIUM_THUNDER_1_1 on it's own also
+	 * XXX: CPU_MATCH_ERRATA_CAVIUM_THUNDER_1_1 on its own also
 	 * triggers on pass 2.0+.
 	 */
 	if (cpu == 0 && CPU_VAR(PCPU_GET(midr)) == 0 &&
diff --git a/sys/cam/cam.h b/sys/cam/cam.h
index ec4df8bbc255..b0c55e7075f4 100644
--- a/sys/cam/cam.h
+++ b/sys/cam/cam.h
@@ -290,7 +290,7 @@ typedef enum {
 	/* SIM ready to take more commands */
 	CAM_RELEASE_SIMQ	= 0x100,
 
-	/* SIM has this command in it's queue */
+	/* SIM has this command in its queue */
 	CAM_SIM_QUEUED		= 0x200,
 
 	/* Quality of service data is valid */
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
index 6e9a624513cf..b41b746d3687 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
@@ -3104,7 +3104,7 @@ arc_buf_size(arc_buf_t *buf)
 
 /*
  * Evict the arc_buf_hdr that is provided as a parameter. The resultant
- * state of the header is dependent on it's state prior to entering this
+ * state of the header is dependent on its state prior to entering this
  * function. The following transitions are possible:
  *
  *    - arc_mru -> arc_mru_ghost
diff --git a/sys/cddl/dev/dtrace/aarch64/dtrace_subr.c b/sys/cddl/dev/dtrace/aarch64/dtrace_subr.c
index d46b9942794a..6f84c063b9cd 100644
--- a/sys/cddl/dev/dtrace/aarch64/dtrace_subr.c
+++ b/sys/cddl/dev/dtrace/aarch64/dtrace_subr.c
@@ -186,7 +186,7 @@ dtrace_trap(struct trapframe *frame, u_int type)
 	/*
 	 * A trap can occur while DTrace executes a probe. Before
 	 * executing the probe, DTrace blocks re-scheduling and sets
-	 * a flag in it's per-cpu flags to indicate that it doesn't
+	 * a flag in its per-cpu flags to indicate that it doesn't
 	 * want to fault. On returning from the probe, the no-fault
 	 * flag is cleared and finally re-scheduling is enabled.
 	 *
diff --git a/sys/cddl/dev/dtrace/arm/dtrace_subr.c b/sys/cddl/dev/dtrace/arm/dtrace_subr.c
index 4ff4e71183be..4ecf7becbe99 100644
--- a/sys/cddl/dev/dtrace/arm/dtrace_subr.c
+++ b/sys/cddl/dev/dtrace/arm/dtrace_subr.c
@@ -186,7 +186,7 @@ dtrace_trap(struct trapframe *frame, u_int type)
 	/*
 	 * A trap can occur while DTrace executes a probe. Before
 	 * executing the probe, DTrace blocks re-scheduling and sets
-	 * a flag in it's per-cpu flags to indicate that it doesn't
+	 * a flag in its per-cpu flags to indicate that it doesn't
 	 * want to fault. On returning from the probe, the no-fault
 	 * flag is cleared and finally re-scheduling is enabled.
 	 *
diff --git a/sys/cddl/dev/dtrace/riscv/dtrace_subr.c b/sys/cddl/dev/dtrace/riscv/dtrace_subr.c
index 429a442aa4d9..3c202737349d 100644
--- a/sys/cddl/dev/dtrace/riscv/dtrace_subr.c
+++ b/sys/cddl/dev/dtrace/riscv/dtrace_subr.c
@@ -189,7 +189,7 @@ dtrace_trap(struct trapframe *frame, u_int type)
 	/*
 	 * A trap can occur while DTrace executes a probe. Before
 	 * executing the probe, DTrace blocks re-scheduling and sets
-	 * a flag in it's per-cpu flags to indicate that it doesn't
+	 * a flag in its per-cpu flags to indicate that it doesn't
 	 * want to fault. On returning from the probe, the no-fault
 	 * flag is cleared and finally re-scheduling is enabled.
 	 *
diff --git a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_eeprom.c b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_eeprom.c
index 5e4a0a15ce0b..063075e397d0 100644
--- a/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_eeprom.c
+++ b/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_eeprom.c
@@ -4397,7 +4397,7 @@ ar9300_eeprom_restore(struct ath_hal *ah)
 #endif
         /*
          * At this point, mptr points to the eeprom data structure
-         * in it's "default" state.  If this is big endian, swap the
+         * in its "default" state.  If this is big endian, swap the
          * data structures back to "little endian" form.
          */
         if (ar9300_eeprom_restore_internal(ah, mptr, mdata_size) >= 0) {
diff --git a/sys/contrib/vchiq/interface/vchiq_arm/vchiq_arm.c b/sys/contrib/vchiq/interface/vchiq_arm/vchiq_arm.c
index 89d9b9ef9138..911face4f318 100644
--- a/sys/contrib/vchiq/interface/vchiq_arm/vchiq_arm.c
+++ b/sys/contrib/vchiq/interface/vchiq_arm/vchiq_arm.c
@@ -1806,7 +1806,7 @@ vchiq_arm_init_state(VCHIQ_STATE_T *state, VCHIQ_ARM_STATE_T *arm_state)
 **			suspend completion and reset the resume state machine.
 **
 ** VC_RESUME_IDLE - Initialise the resume completion at the same time.  The
-**			resume completion is in it's 'done' state whenever
+**			resume completion is in its 'done' state whenever
 **			videcore is running.  Therfore, the VC_RESUME_IDLE state
 **			implies that videocore is suspended.
 **			Hence, any thread which needs to wait until videocore is
diff --git a/sys/dev/aic7xxx/aic7xxx.seq b/sys/dev/aic7xxx/aic7xxx.seq
index e1bf960aeecc..83a273a018ab 100644
--- a/sys/dev/aic7xxx/aic7xxx.seq
+++ b/sys/dev/aic7xxx/aic7xxx.seq
@@ -1446,7 +1446,7 @@ p_command_xfer:
 		test	SSTAT0, SDONE jnz . + 2;
 		test    SSTAT1, PHASEMIS jz . - 1;
 		/*
-		 * Wait for our ACK to go-away on it's own
+		 * Wait for our ACK to go-away on its own
 		 * instead of being killed by SCSIEN getting cleared.
 		 */
 		test	SCSISIGI, ACKI jnz .;
diff --git a/sys/dev/ath/if_ath_tdma.c b/sys/dev/ath/if_ath_tdma.c
index c29da1b1de89..e545a3eaf837 100644
--- a/sys/dev/ath/if_ath_tdma.c
+++ b/sys/dev/ath/if_ath_tdma.c
@@ -270,7 +270,7 @@ ath_tdma_config(struct ath_softc *sc, struct ieee80211vap *vap)
 	 * fixed/lowest transmit rate.  Note that the interface
 	 * mtu does not include the 802.11 overhead so we must
 	 * tack that on (ath_hal_computetxtime includes the
-	 * preamble and plcp in it's calculation).
+	 * preamble and plcp in its calculation).
 	 */
 	tdma = vap->iv_tdma;
 	if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
diff --git a/sys/dev/isci/scil/sati_design.h b/sys/dev/isci/scil/sati_design.h
index 372dce0f7d29..47f05b0642cd 100644
--- a/sys/dev/isci/scil/sati_design.h
+++ b/sys/dev/isci/scil/sati_design.h
@@ -130,7 +130,7 @@ block devices (e.g. disks).
 
 @image html Use_Case_Diagram__SATI__SATI_-_SBC.jpg "SCSI Block Command Translation Use Cases"
 
-The SCSI-to-ATA Translation (SAT) specification defines a few of it's own
+The SCSI-to-ATA Translation (SAT) specification defines a few of its own
 commands, parameter data, and log pages.  This use case diagram, however, only
 captures the SAT specific commands being translated.
 
diff --git a/sys/dev/isci/scil/sci_base_controller.h b/sys/dev/isci/scil/sci_base_controller.h
index cdf38a13ae8d..dc28b52627ee 100644
--- a/sys/dev/isci/scil/sci_base_controller.h
+++ b/sys/dev/isci/scil/sci_base_controller.h
@@ -90,7 +90,7 @@ typedef enum _SCI_BASE_CONTROLLER_STATES
 
    /**
     * This state indicates that the controller is reset.  The memory for
-    * the controller is in it's initial state, but the controller requires
+    * the controller is in its initial state, but the controller requires
     * initialization.
     * This state is entered from the INITIAL state.
     * This state is entered from the RESETTING state.
diff --git a/sys/dev/sfxge/common/efx_mcdi.c b/sys/dev/sfxge/common/efx_mcdi.c
index d50e7c70265d..25006b397cf4 100644
--- a/sys/dev/sfxge/common/efx_mcdi.c
+++ b/sys/dev/sfxge/common/efx_mcdi.c
@@ -1092,7 +1092,7 @@ efx_mcdi_read_assertion(
 
 	/*
 	 * Before we attempt to chat to the MC, we should verify that the MC
-	 * isn't in it's assertion handler, either due to a previous reboot,
+	 * isn't in its assertion handler, either due to a previous reboot,
 	 * or because we're reinitializing due to an eec_exception().
 	 *
 	 * Use GET_ASSERTS to read any assertion state that may be present.
diff --git a/sys/dev/sound/pci/hda/hdaa.c b/sys/dev/sound/pci/hda/hdaa.c
index c24f428399bf..199679ccb9b2 100644
--- a/sys/dev/sound/pci/hda/hdaa.c
+++ b/sys/dev/sound/pci/hda/hdaa.c
@@ -2382,7 +2382,7 @@ hdaa_audio_ctl_source_volume(struct hdaa_pcm_devinfo *pdevinfo,
 	}
 
 	/* If widget has own ossdev - not traverse it.
-	   It will be traversed on it's own. */
+	   It will be traversed on its own. */
 	if (w->ossdev >= 0 && depth > 0)
 		return;
 
@@ -4550,7 +4550,7 @@ hdaa_audio_ctl_source_amp(struct hdaa_devinfo *devinfo, nid_t nid, int index,
 	}
 
 	/* If widget has own ossdev - not traverse it.
-	   It will be traversed on it's own. */
+	   It will be traversed on its own. */
 	if (w->ossdev >= 0 && depth > 0)
 		return (found);
 
diff --git a/sys/dev/sound/pci/hda/hdac.c b/sys/dev/sound/pci/hda/hdac.c
index a63c730e911e..4be6056183d7 100644
--- a/sys/dev/sound/pci/hda/hdac.c
+++ b/sys/dev/sound/pci/hda/hdac.c
@@ -426,7 +426,7 @@ hdac_reset(struct hdac_softc *sc, int wakeup)
 
 	/*
 	 * Wait for codecs to finish their own reset sequence. The delay here
-	 * should be of 250us but for some reasons, on it's not enough on my
+	 * should be of 250us but for some reasons, it's not enough on my
 	 * computer. Let's use twice as much as necessary to make sure that
 	 * it's reset properly.
 	 */
diff --git a/sys/fs/nullfs/null_vnops.c b/sys/fs/nullfs/null_vnops.c
index 4ee6b4546c08..0bd7edd8d00e 100644
--- a/sys/fs/nullfs/null_vnops.c
+++ b/sys/fs/nullfs/null_vnops.c
@@ -649,7 +649,7 @@ null_lock(struct vop_lock1_args *ap)
 	nn = VTONULL(vp);
 	/*
 	 * If we're still active we must ask the lower layer to
-	 * lock as ffs has special lock considerations in it's
+	 * lock as ffs has special lock considerations in its
 	 * vop lock.
 	 */
 	if (nn != NULL && (lvp = NULLVPTOLOWERVP(vp)) != NULL) {
@@ -662,7 +662,7 @@ null_lock(struct vop_lock1_args *ap)
 		 * the lowervp's vop_lock routine.  When we vgone we will
 		 * drop our last ref to the lowervp, which would allow it
 		 * to be reclaimed.  The lowervp could then be recycled,
-		 * in which case it is not legal to be sleeping in it's VOP.
+		 * in which case it is not legal to be sleeping in its VOP.
 		 * We prevent it from being recycled by holding the vnode
 		 * here.
 		 */
diff --git a/sys/geom/raid/md_ddf.c b/sys/geom/raid/md_ddf.c
index a663af22be6b..df58a1e8da03 100644
--- a/sys/geom/raid/md_ddf.c
+++ b/sys/geom/raid/md_ddf.c
@@ -1626,7 +1626,7 @@ g_raid_md_ddf_start_disk(struct g_raid_disk *disk, struct g_raid_volume *vol)
 	vmeta = &pv->pv_meta;
 	gmeta = &mdi->mdio_meta;
 
-	/* Find disk position in metadata by it's reference. */
+	/* Find disk position in metadata by its reference. */
 	disk_pos = ddf_meta_find_disk(vmeta, reference,
 	    &md_disk_bvd, &md_disk_pos);
 	md_pde_pos = ddf_meta_find_pd(gmeta, NULL, reference);
diff --git a/sys/geom/raid/md_intel.c b/sys/geom/raid/md_intel.c
index 11c561cd0222..f3e4998f87de 100644
--- a/sys/geom/raid/md_intel.c
+++ b/sys/geom/raid/md_intel.c
@@ -923,7 +923,7 @@ g_raid_md_intel_start_disk(struct g_raid_disk *disk)
 	pd = (struct g_raid_md_intel_perdisk *)disk->d_md_data;
 	olddisk = NULL;
 
-	/* Find disk position in metadata by it's serial. */
+	/* Find disk position in metadata by its serial. */
 	disk_pos = intel_meta_find_disk(meta, pd->pd_disk_meta.serial);
 	if (disk_pos < 0) {
 		G_RAID_DEBUG1(1, sc, "Unknown, probably new or stale disk");
diff --git a/sys/geom/raid/md_jmicron.c b/sys/geom/raid/md_jmicron.c
index ae5abab1b7fa..231c27f9ec52 100644
--- a/sys/geom/raid/md_jmicron.c
+++ b/sys/geom/raid/md_jmicron.c
@@ -434,7 +434,7 @@ g_raid_md_jmicron_start_disk(struct g_raid_disk *disk)
 	pd = (struct g_raid_md_jmicron_perdisk *)disk->d_md_data;
 	olddisk = NULL;
 
-	/* Find disk position in metadata by it's serial. */
+	/* Find disk position in metadata by its serial. */
 	if (pd->pd_meta != NULL)
 		disk_pos = jmicron_meta_find_disk(meta, pd->pd_disk_id);
 	else
diff --git a/sys/geom/raid/md_nvidia.c b/sys/geom/raid/md_nvidia.c
index d1d2e296317c..460f873ff6fc 100644
--- a/sys/geom/raid/md_nvidia.c
+++ b/sys/geom/raid/md_nvidia.c
@@ -441,7 +441,7 @@ g_raid_md_nvidia_start_disk(struct g_raid_disk *disk)
 	pd = (struct g_raid_md_nvidia_perdisk *)disk->d_md_data;
 	olddisk = NULL;
 
-	/* Find disk position in metadata by it's serial. */
+	/* Find disk position in metadata by its serial. */
 	if (pd->pd_meta != NULL) {
 		disk_pos = pd->pd_meta->disk_number;
 		if (disk_pos >= meta->total_disks || mdi->mdio_started)
diff --git a/sys/geom/raid/md_promise.c b/sys/geom/raid/md_promise.c
index 1cf334f240f7..245cd74f7dbb 100644
--- a/sys/geom/raid/md_promise.c
+++ b/sys/geom/raid/md_promise.c
@@ -673,7 +673,7 @@ g_raid_md_promise_start_disk(struct g_raid_disk *disk, int sdn,
 	meta = pv->pv_meta;
 
 	if (sdn >= 0) {
-		/* Find disk position in metadata by it's serial. */
+		/* Find disk position in metadata by its serial. */
 		md_disk_pos = promise_meta_find_disk(meta, pd->pd_meta[sdn]->disk.id);
 		/* For RAID0+1 we need to translate order. */
 		disk_pos = promise_meta_translate_disk(vol, md_disk_pos);
diff --git a/sys/geom/raid/md_sii.c b/sys/geom/raid/md_sii.c
index f97366041ef4..252b41aea615 100644
--- a/sys/geom/raid/md_sii.c
+++ b/sys/geom/raid/md_sii.c
@@ -489,7 +489,7 @@ g_raid_md_sii_start_disk(struct g_raid_disk *disk)
 	pd = (struct g_raid_md_sii_perdisk *)disk->d_md_data;
 	olddisk = NULL;
 
-	/* Find disk position in metadata by it's serial. */
+	/* Find disk position in metadata by its serial. */
 	if (pd->pd_meta != NULL)
 		disk_pos = sii_meta_disk_pos(meta, pd->pd_meta);
 	else
diff --git a/sys/i386/include/cserial.h b/sys/i386/include/cserial.h
index 1fcb611700e6..314e9f647d43 100644
--- a/sys/i386/include/cserial.h
+++ b/sys/i386/include/cserial.h
@@ -117,7 +117,7 @@ struct e3_statistics {
 
 /*
  * Attach/detach the protocol to the channel.
- * The protocol is given by it's name, char[8].
+ * The protocol is given by its name, char[8].
  * For example "async", "hdlc", "cisco", "fr", "ppp".
  */
 #define SERIAL_GETPROTO		_IOR ('x', 1, char [8])
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 3c42bb72f9d4..82b733077b39 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -793,7 +793,7 @@ start_init(void *dummy)
 }
 
 /*
- * Like kproc_create(), but runs in it's own address space.
+ * Like kproc_create(), but runs in its own address space.
  * We do this early to reserve pid 1.
  *
  * Note special case - do not make it runnable yet.  Other work
diff --git a/sys/kern/kern_ctf.c b/sys/kern/kern_ctf.c
index 09eea1e00f96..a2509f08c3ff 100644
--- a/sys/kern/kern_ctf.c
+++ b/sys/kern/kern_ctf.c
@@ -236,7 +236,7 @@ link_elf_ctf_get(linker_file_t lf, linker_ctf_t *lc)
 	}
 
 	/*
-	 * Allocate memory to buffer the CTF data in it's decompressed
+	 * Allocate memory to buffer the CTF data in its decompressed
 	 * form.
 	 */
 	ctftab = malloc(sz, M_LINKER, M_WAITOK);
diff --git a/sys/kern/subr_firmware.c b/sys/kern/subr_firmware.c
index 172d7198dc66..df720bd211e2 100644
--- a/sys/kern/subr_firmware.c
+++ b/sys/kern/subr_firmware.c
@@ -229,7 +229,7 @@ firmware_unregister(const char *imagename)
 		/*
 		 * It is ok for the lookup to fail; this can happen
 		 * when a module is unloaded on last reference and the
-		 * module unload handler unregister's each of it's
+		 * module unload handler unregister's each of its
 		 * firmware images.
 		 */
 		err = 0;
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c
index 03f2b1780050..1f30dab8a122 100644
--- a/sys/kern/uipc_mbuf.c
+++ b/sys/kern/uipc_mbuf.c
@@ -1336,7 +1336,7 @@ nospace:
 /*
  * Defragment an mbuf chain, returning at most maxfrags separate
  * mbufs+clusters.  If this is not possible NULL is returned and
- * the original mbuf chain is left in it's present (potentially
+ * the original mbuf chain is left in its present (potentially
  * modified) state.  We use two techniques: collapsing consecutive
  * mbufs and replacing consecutive mbufs by a cluster.
  *
diff --git a/sys/net80211/ieee80211_node.h b/sys/net80211/ieee80211_node.h
index 980fe5c45d2e..7bbf9761c970 100644
--- a/sys/net80211/ieee80211_node.h
+++ b/sys/net80211/ieee80211_node.h
@@ -36,7 +36,7 @@
  * IEEE80211_INACT_WAIT seconds to handle "inactivity processing".
  * This is used to do node inactivity processing when operating
  * as an AP, adhoc or mesh mode.  For inactivity processing each node
- * has a timeout set in it's ni_inact field that is decremented
+ * has a timeout set in its ni_inact field that is decremented
  * on each timeout and the node is reclaimed when the counter goes
  * to zero.  We use different inactivity timeout values depending
  * on whether the node is associated and authorized (either by
diff --git a/sys/netgraph/ng_base.c b/sys/netgraph/ng_base.c
index 9309938564a9..1253d1cba051 100644
--- a/sys/netgraph/ng_base.c
+++ b/sys/netgraph/ng_base.c
@@ -1179,7 +1179,7 @@ ng_destroy_hook(hook_p hook)
 		/*
 		 * Set the peer to point to ng_deadhook
 		 * from this moment on we are effectively independent it.
-		 * send it an rmhook message of it's own.
+		 * send it an rmhook message of its own.
 		 */
 		peer->hk_peer = &ng_deadhook;	/* They no longer know us */
 		hook->hk_peer = &ng_deadhook;	/* Nor us, them */
@@ -3005,7 +3005,7 @@ void
 ng_free_item(item_p item)
 {
 	/*
-	 * The item may hold resources on it's own. We need to free
+	 * The item may hold resources on its own. We need to free
 	 * these before we can free the item. What they are depends upon
 	 * what kind of item it is. it is important that nodes zero
 	 * out pointers to resources that they remove from the item
@@ -3577,7 +3577,7 @@ ng_address_hook(node_p here, item_p item, hook_p hook, ng_ID_t retaddr)
 	ITEM_DEBUG_CHECKS;
 	/*
 	 * Quick sanity check..
-	 * Since a hook holds a reference on it's node, once we know
+	 * Since a hook holds a reference on its node, once we know
 	 * that the peer is still connected (even if invalid,) we know
 	 * that the peer node is present, though maybe invalid.
 	 */
diff --git a/sys/powerpc/powerpc/mmu_if.m b/sys/powerpc/powerpc/mmu_if.m
index b840ead8d334..c8911aadaca6 100644
--- a/sys/powerpc/powerpc/mmu_if.m
+++ b/sys/powerpc/powerpc/mmu_if.m
@@ -725,7 +725,7 @@ METHOD void align_superpage {
 
 /**
  * @brief Bootstrap the VM system. At the completion of this routine, the
- * kernel will be running in it's own address space with full control over
+ * kernel will be running in its own address space with full control over
  * paging.
  *
  * @param _start	start of reserved memory (obsolete ???)
diff --git a/sys/security/mac/mac_inet.c b/sys/security/mac/mac_inet.c
index a1bbea9caeba..9763f8b5e4df 100644
--- a/sys/security/mac/mac_inet.c
+++ b/sys/security/mac/mac_inet.c
@@ -435,7 +435,7 @@ mac_netinet_firewall_send(struct mbuf *m)
 /*
  * These functions really should be referencing the syncache structure
  * instead of the label.  However, due to some of the complexities associated
- * with exposing this syncache structure we operate directly on it's label
+ * with exposing this syncache structure we operate directly on its label
  * pointer.  This should be OK since we aren't making any access control
  * decisions within this code directly, we are merely allocating and copying
  * label storage so we can properly initialize mbuf labels for any packets
diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c
index 5c987facede6..ed71109cbf39 100644
--- a/sys/vm/vm_pageout.c
+++ b/sys/vm/vm_pageout.c
@@ -1410,7 +1410,7 @@ vm_pageout_oom(int shortage)
 	/*
 	 * We keep the process bigproc locked once we find it to keep anyone
 	 * from messing with it; however, there is a possibility of
-	 * deadlock if process B is bigproc and one of it's child processes
+	 * deadlock if process B is bigproc and one of its child processes
 	 * attempts to propagate a signal to B while we are waiting for A's
 	 * lock while walking this list.  To avoid this, we don't block on
 	 * the process lock but just skip a process if it is already locked.
diff --git a/sys/x86/xen/xen_intr.c b/sys/x86/xen/xen_intr.c
index 66870b4c37f2..9c78306db87a 100644
--- a/sys/x86/xen/xen_intr.c
+++ b/sys/x86/xen/xen_intr.c
@@ -940,7 +940,7 @@ xen_intr_disable_source(struct intsrc *base_isrc, int eoi)
 	/*
 	 * NB: checking if the event channel is already masked is
 	 * needed because the event channel user-space device
-	 * masks event channels on it's filter as part of it's
+	 * masks event channels on its filter as part of its
 	 * normal operation, and those shouldn't be automatically
 	 * unmasked by the generic interrupt code. The event channel
 	 * device will unmask them when needed.