[PATCH linux-next] ipc: fix local variable initialization incompat_do_msg_fill()

From: Konstantin Khlebnikov
Date: Thu Apr 19 2012 - 08:21:31 EST

The "msgp" must points to the userspace buffer.

fix for linux-next commit 774d0252d303969a7281eefd6eaccde50bb6eb6e
("c/r: ipc: message queue receive cleanup")

Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
Cc: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx>
Cc: Lucas De Marchi <lucas.de.marchi@xxxxxxxxx>
Cc: Chris Metcalf <cmetcalf@xxxxxxxxxx>
Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
ipc/compat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipc/compat.c b/ipc/compat.c
index 6da376b..0c2ebd0 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -363,7 +363,7 @@ static long compat_do_msg_steal(void __user *dest, struct msg_msg *msg, size_t b

long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz)
- struct compat_msgbuf __user *msgp;
+ struct compat_msgbuf __user *msgp = dest;
size_t msgsz;

if (put_user(msg->m_type, &msgp->mtype))

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