From 2b3097a294b6daaf390010de14ca50bfccbc6fb6 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Tue, 30 Apr 2013 19:14:42 -0700 Subject: [PATCH] ipc: set EFAULT as default error in load_msg() Signed-off-by: Peter Hurley Acked-by: Stanislav Kinsbursky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- ipc/msgutil.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/ipc/msgutil.c b/ipc/msgutil.c index b79582d461a..d33fbb2743b 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -84,7 +84,7 @@ 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); @@ -92,19 +92,15 @@ struct msg_msg *load_msg(const void __user *src, int len) 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); -- 2.20.1