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authorJeff Layton <jlayton@redhat.com>2012-02-07 06:31:05 -0500
committerSteve French <smfrench@gmail.com>2012-02-07 22:25:31 -0600
commitff4fa4a25a33f92b5653bb43add0c63bea98d464 (patch)
treecdd46e53bc579250fc0722b2d2f11ff183b47715 /fs/cifs
parent8b0192a5f478da1c1ae906bf3ffff53f26204f56 (diff)
cifs: don't return error from standard_receive3 after marking response malformed
standard_receive3 will check the validity of the response from the server (via checkSMB). It'll pass the result of that check to handle_mid which will dequeue it and mark it with a status of MID_RESPONSE_MALFORMED if checkSMB returned an error. At that point, standard_receive3 will also return an error, which will make the demultiplex thread skip doing the callback for the mid. This is wrong -- if we were able to identify the request and the response is marked malformed, then we want the demultiplex thread to do the callback. Fix this by making standard_receive3 return 0 in this situation. Cc: stable@vger.kernel.org Reported-and-Tested-by: Mark Moseley <moseleymark@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/connect.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 940189bd6490..602f77c304c9 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -773,10 +773,11 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
cifs_dump_mem("Bad SMB: ", buf,
min_t(unsigned int, server->total_read, 48));
- if (mid)
- handle_mid(mid, server, smb_buffer, length);
+ if (!mid)
+ return length;
- return length;
+ handle_mid(mid, server, smb_buffer, length);
+ return 0;
}
static int