ipc: set EFAULT as default error in load_msg()

Signed-off-by: Peter Hurley <[email protected]> Acked-by: Stanislav Kinsbursky <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
jix · May 1, 2013 · 2b3097a · 2b3097a
1 parent da085d4
commit 2b3097a
Showing 1 changed file with 3 additions and 7 deletions.
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
@@ -84,27 +84,23 @@ struct msg_msg *load_msg(const void __user *src, int len)
 {
 	struct msg_msg *msg;
 	struct msg_msgseg *seg;
-	int err;
+	int err = -EFAULT;
 	int alen;
 
 	msg = alloc_msg(len);
 	if (msg == NULL)
 		return ERR_PTR(-ENOMEM);
 
 	alen = min(len, DATALEN_MSG);
-	if (copy_from_user(msg + 1, src, alen)) {
-		err = -EFAULT;
+	if (copy_from_user(msg + 1, src, alen))
 		goto out_err;
-	}
 
 	for (seg = msg->next; seg != NULL; seg = seg->next) {
 		len -= alen;
 		src = (char __user *)src + alen;
 		alen = min(len, DATALEN_SEG);
-		if (copy_from_user(seg + 1, src, alen)) {
-			err = -EFAULT;
+		if (copy_from_user(seg + 1, src, alen))
 			goto out_err;
-		}
 	}
 
 	err = security_msg_msg_alloc(msg);