[PATCH] 9p: fix marshalling bug in tcreate with empty extension field
Signed-off-by: Russ Ross <russross@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/9p/conv.c b/fs/9p/conv.c
index 1e89814..56d88c1 100644
--- a/fs/9p/conv.c
+++ b/fs/9p/conv.c
@@ -673,8 +673,10 @@
struct cbuf *bufp = &buffer;
size = 4 + 2 + strlen(name) + 4 + 1; /* fid[4] name[s] perm[4] mode[1] */
- if (extended && extension!=NULL)
- size += 2 + strlen(extension); /* extension[s] */
+ if (extended) {
+ size += 2 + /* extension[s] */
+ (extension == NULL ? 0 : strlen(extension));
+ }
fc = v9fs_create_common(bufp, size, TCREATE);
if (IS_ERR(fc))