cifs: Fix an uninitialised variable

Fix an uninitialised variable introduced in cifs.

Fixes: 3d78fe73fa12 ("cifs: Build the RDMA SGE list directly from an iterator")
Signed-off-by: David Howells <[e-mail]>
Reviewed-by: Paulo Alcantara (SUSE) <[e-mail]>
cc: Steve French <[e-mail]>
cc: Shyam Prasad N <[e-mail]>
cc: Rohith Surabattula <[e-mail]>
cc: Tom Talpey <[e-mail]>
cc: Jeff Layton <[e-mail]>
cc: [e-mail]
cc: [e-mail]
Signed-off-by: Steve French <[e-mail]>

fs/cifs/smbdirect.c

···
 	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 */