From: Eric W. Biederman <ebiederm@xmission.com>
Date: Mon, 31 Jul 2017 22:18:40 +0000 (-0500)
Subject: signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=eb5346c379cb272eca77f63473de09103a22ebee;p=linux.git

signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32

The new unified copy_siginfo_from_user32 takes care of this.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 84b1367935e41..ec4365da9be83 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -1226,7 +1226,6 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
 		break;
 
 	case PTRACE_SETSIGINFO:
-		memset(&siginfo, 0, sizeof siginfo);
 		if (copy_siginfo_from_user32(
 			    &siginfo, (struct compat_siginfo __user *) datap))
 			ret = -EFAULT;
diff --git a/kernel/signal.c b/kernel/signal.c
index 5211b1b57163c..bebe44265b8b6 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3155,7 +3155,7 @@ COMPAT_SYSCALL_DEFINE3(rt_sigqueueinfo,
 			int, sig,
 			struct compat_siginfo __user *, uinfo)
 {
-	siginfo_t info = {};
+	siginfo_t info;
 	int ret = copy_siginfo_from_user32(&info, uinfo);
 	if (unlikely(ret))
 		return ret;
@@ -3199,7 +3199,7 @@ COMPAT_SYSCALL_DEFINE4(rt_tgsigqueueinfo,
 			int, sig,
 			struct compat_siginfo __user *, uinfo)
 {
-	siginfo_t info = {};
+	siginfo_t info;
 
 	if (copy_siginfo_from_user32(&info, uinfo))
 		return -EFAULT;