[140/244] Fix the conflict between rwpidforward and rw mount options

From: Greg KH
Date: Wed Sep 28 2011 - 18:44:49 EST


3.0-stable review patch. If anyone has any objections, please let us know.

------------------

From: Steve French <sfrench@xxxxxxxxxx>

commit c9c7fa0064f4afe1d040e72f24c2256dd8ac402d upstream.

Both these options are started with "rw" - that's why the first one
isn't switched on even if it is specified. Fix this by adding a length
check for "rw" option check.

Signed-off-by: Pavel Shilovsky <piastry@xxxxxxxxxxx>
Signed-off-by: Steve French <sfrench@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
fs/cifs/connect.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1258,7 +1258,7 @@ cifs_parse_mount_options(const char *mou
/* ignore */
} else if (strnicmp(data, "guest", 5) == 0) {
/* ignore */
- } else if (strnicmp(data, "rw", 2) == 0) {
+ } else if (strnicmp(data, "rw", 2) == 0 && strlen(data) == 2) {
/* ignore */
} else if (strnicmp(data, "ro", 2) == 0) {
/* ignore */
@@ -1361,7 +1361,7 @@ cifs_parse_mount_options(const char *mou
vol->server_ino = 1;
} else if (strnicmp(data, "noserverino", 9) == 0) {
vol->server_ino = 0;
- } else if (strnicmp(data, "rwpidforward", 4) == 0) {
+ } else if (strnicmp(data, "rwpidforward", 12) == 0) {
vol->rwpidforward = 1;
} else if (strnicmp(data, "cifsacl", 7) == 0) {
vol->cifs_acl = 1;


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