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authorngie <ngie@FreeBSD.org>2015-10-05 00:11:49 +0000
committerngie <ngie@FreeBSD.org>2015-10-05 00:11:49 +0000
commite3bac3a30a41f56ac36f4791a7df260f2155c8db (patch)
treeac20948d4aa368300bc16ece67336a1bed25e992 /sys/kern/subr_sbuf.c
parentca6cf0ba737487849f2ee102afce74545600850c (diff)
parent85fa330dc74592563cea8d7cf0e628fd30683993 (diff)
downloadFreeBSD-src-e3bac3a30a41f56ac36f4791a7df260f2155c8db.zip
FreeBSD-src-e3bac3a30a41f56ac36f4791a7df260f2155c8db.tar.gz
MFhead @ r281414
Diffstat (limited to 'sys/kern/subr_sbuf.c')
-rw-r--r--sys/kern/subr_sbuf.c4
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)
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