[SCSI] bfa: don't leak mem in bfad_im_bsg_els_ct_request()

If 'drv_fcxp = kzalloc(sizeof(struct bfad_fcxp), GFP_KERNEL);' fails
and returns NULL, then we'll leak the memory allocated to 'bsg_fcpt'
when we jump to 'out:' and the variable subsequently goes out of
scope.

Also remove the cast of the kzalloc() return value. kzalloc() returns
a void* which is implicitly converted, so the explicit cast is
pointless.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/bfa/bfad_bsg.c

@@ -3047,8 +3047,7 @@ bfad_im_bsg_els_ct_request(struct fc_bsg_job *job)
 	 * Allocate buffer for bsg_fcpt and do a copy_from_user op for payload
 	 * buffer of size bsg_data->payload_len
 	 */
-	bsg_fcpt = (struct bfa_bsg_fcpt_s *)
-		   kzalloc(bsg_data->payload_len, GFP_KERNEL);
+	bsg_fcpt = kzalloc(bsg_data->payload_len, GFP_KERNEL);
 	if (!bsg_fcpt)
 		goto out;
 
@@ -3060,6 +3059,7 @@ bfad_im_bsg_els_ct_request(struct fc_bsg_job *job)
 
 	drv_fcxp = kzalloc(sizeof(struct bfad_fcxp), GFP_KERNEL);
 	if (drv_fcxp == NULL) {
+		kfree(bsg_fcpt);
 		rc = -ENOMEM;
 		goto out;
 	}