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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-05-06 20:37:42 +0300
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-05-06 20:37:42 +0300
commitcebeb0f1885fa93c44be5d4e0b9b640210ff088c (patch)
treea33e4af4ddaa7a57f997ab9a2baceb48209670cd /ipc/msg.c
parent939ecf6b14c46e3448411a934418311b492bfee4 (diff)
parent48d11dc37977614a461bfedddc52d1c651bc279f (diff)
Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next
Diffstat (limited to 'ipc/msg.c')
-rw-r--r--ipc/msg.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 245db1140ad66..649853105a5d7 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -901,6 +901,8 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl
return -EINVAL;
if (msgflg & MSG_COPY) {
+ if ((msgflg & MSG_EXCEPT) || !(msgflg & IPC_NOWAIT))
+ return -EINVAL;
copy = prepare_copy(buf, min_t(size_t, bufsz, ns->msg_ctlmax));
if (IS_ERR(copy))
return PTR_ERR(copy);