diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2026-03-17 16:05:17 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2026-03-17 16:05:17 +0000 |
| commit | c181c8f5ca707962359e636ca5aa536e60147eee (patch) | |
| tree | 9f8c6275b522a0d939b769cb845abe4f05a6f809 | |
| parent | 1d13d938fe6c7639d2bb4cb5248a1f81275b6891 (diff) | |
LinuxKPI: Clear the sbuf at the start of each call to seq_read
Each invocation of seq_read invokes the seq_file.show callback which
writes into the sbuf. Then it invokes sbuf_finish before copying the
data into the caller's buffer. Without this, a second call to
seq_read on the same file would try to append data to a finished sbuf.
Reviewed by: bz
Sponsored by: AFRL, DARPA
| -rw-r--r-- | sys/compat/linuxkpi/common/src/linux_seq_file.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/src/linux_seq_file.c b/sys/compat/linuxkpi/common/src/linux_seq_file.c index 9c06fe27bebe..6fe6ccd1e68e 100644 --- a/sys/compat/linuxkpi/common/src/linux_seq_file.c +++ b/sys/compat/linuxkpi/common/src/linux_seq_file.c @@ -49,6 +49,7 @@ seq_read(struct linux_file *f, char *ubuf, size_t size, off_t *ppos) m = f->private_data; sbuf = m->buf; + sbuf_clear(sbuf); p = m->op->start(m, ppos); rc = m->op->show(m, p); |