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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>
hifive-unleashed-5.1
Jeff Layton 2012-02-07 06:31:05 -05:00 committed by Steve French
parent 8b0192a5f4
commit ff4fa4a25a
1 changed files with 4 additions and 3 deletions
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7
fs/cifs/connect.c
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@ -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