cifs: Fix an uninitialised variable

Fix an uninitialised variable introduced in cifs.

Fixes: 3d78fe73 ("cifs: Build the RDMA SGE list directly from an iterator")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Tom Talpey <tom@talpey.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: linux-rdma@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/smbdirect.c

@@ -837,7 +837,7 @@ static int smbd_post_send_iter(struct smbd_connection *info,
 	int data_length;
 	struct smbd_request *request;
 	struct smbd_data_transfer *packet;
-	int new_credits;
+	int new_credits = 0;
 
 wait_credit:
 	/* Wait for send credits. A SMBD packet needs one credit */