diff options
Diffstat (limited to 'sys/kern/subr_sbuf.c')
| -rw-r--r-- | sys/kern/subr_sbuf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/subr_sbuf.c b/sys/kern/subr_sbuf.c index 3c36b28..5314590 100644 --- a/sys/kern/subr_sbuf.c +++ b/sys/kern/subr_sbuf.c @@ -623,6 +623,10 @@ sbuf_vprintf(struct sbuf *s, const char *fmt, va_list ap) va_copy(ap_copy, ap); len = vsnprintf(&s->s_buf[s->s_len], SBUF_FREESPACE(s) + 1, fmt, ap_copy); + if (len < 0) { + s->s_error = errno; + return (-1); + } va_end(ap_copy); if (SBUF_FREESPACE(s) >= len) |
