From: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

When buf_check_overflow() returns != 0 we will hit kfree(ERR_PTR(err)) and
it will not be happy about it.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 net/9p/conv.c |    1 +
 1 files changed, 1 insertion(+)

diff -puN net/9p/conv.c~fs-9p-convc-error-path-fix net/9p/conv.c
--- a/net/9p/conv.c~fs-9p-convc-error-path-fix
+++ a/net/9p/conv.c
@@ -763,6 +763,7 @@ struct p9_fcall *p9_create_twrite(u32 fi
 	if (err) {
 		kfree(fc);
 		fc = ERR_PTR(err);
+		goto error;
 	}
 
 	if (buf_check_overflow(bufp)) {
_