From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Sun, 18 Oct 2009 22:54:29 +0000 (+0300)
Subject: ipc: fix unused variable warning
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f1970c48ef06ece4e23765501976507ab52b0edd;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

ipc: fix unused variable warning

Commit a0d092f introduced the following warning:
ipc/msg.c: In function ?msgctl_down?:
ipc/msg.c:415: warning: ?msqid64? may be used uninitialized in this function

The gcc warning in this case is actually bogus, as msqid64 is touched only
iff cmd == IPC_SET, and in such case, copy_msqid_from_user() initializes
it properly.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/ipc/msg.c b/ipc/msg.c
index 2ceab7f12fc..085bd58f2f0 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -412,7 +412,7 @@ static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,
 		       struct msqid_ds __user *buf, int version)
 {
 	struct kern_ipc_perm *ipcp;
-	struct msqid64_ds msqid64;
+	struct msqid64_ds uninitialized_var(msqid64);
 	struct msg_queue *msq;
 	int err;