diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-05-01 04:14:42 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-01 17:12:57 +0200 |
| commit | 2b3097a294b6daaf390010de14ca50bfccbc6fb6 (patch) | |
| tree | e6a90cce5782af1922bd7f53b1b13a2b24cb836b /ipc/msgutil.c | |
| parent | ipc: tighten msg copy loops (diff) | |
| download | linux-2b3097a294b6daaf390010de14ca50bfccbc6fb6.tar.xz linux-2b3097a294b6daaf390010de14ca50bfccbc6fb6.zip | |
ipc: set EFAULT as default error in load_msg()
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | ipc/msgutil.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/ipc/msgutil.c b/ipc/msgutil.c index b79582d461a4..d33fbb2743bd 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); |