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| author | Florian Walpen <dev@submerge.ch> | 2022-11-04 18:04:26 +0000 |
|---|---|---|
| committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2022-11-04 18:05:34 +0000 |
| commit | ad370f7658ba59811d02c04032ac33ef787f752f (patch) | |
| tree | 6174b174840afb7e678bf0405d185a0f280137bf /sys/dev/sound | |
| parent | eb4d86d529e2523a19fd7454976923319954a49d (diff) | |
| download | src-ad370f7658ba59811d02c04032ac33ef787f752f.tar.gz src-ad370f7658ba59811d02c04032ac33ef787f752f.zip | |
sound(4): Fix memory map of /dev/dsp devices when buffer size is not a multiple of PAGE_SIZE.
By using sndbuf_getallocsize() instead of sndbuf_getsize() in dsp_mmap_single().
PR: 267555
MFC after: 1 week
Sponsored by: NVIDIA Networking
Diffstat (limited to 'sys/dev/sound')
| -rw-r--r-- | sys/dev/sound/pcm/dsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/sound/pcm/dsp.c b/sys/dev/sound/pcm/dsp.c index 15f437b8627c..cddc05206c4d 100644 --- a/sys/dev/sound/pcm/dsp.c +++ b/sys/dev/sound/pcm/dsp.c @@ -2291,7 +2291,7 @@ dsp_mmap_single(struct cdev *i_dev, vm_ooffset_t *offset, c = ((nprot & PROT_WRITE) != 0) ? wrch : rdch; if (c == NULL || (c->flags & CHN_F_MMAP_INVALID) || - (*offset + size) > sndbuf_getsize(c->bufsoft) || + (*offset + size) > sndbuf_getallocsize(c->bufsoft) || (wrch != NULL && (wrch->flags & CHN_F_MMAP_INVALID)) || (rdch != NULL && (rdch->flags & CHN_F_MMAP_INVALID))) { relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR); |