From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 3 Sep 2016 22:05:00 +0000 (-0400)
Subject: mn10300: finish verify_area() off
X-Git-Tag: v4.9-rc1~40^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=81029b1f775ad55caeaa8f7f260273969a4a282e;p=platform%2Fkernel%2Flinux-exynos.git

mn10300: finish verify_area() off

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
index d012e87..bd285e5 100644
--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -72,12 +72,6 @@ static inline int ___range_ok(unsigned long addr, unsigned int size)
 #define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
 #define __access_ok(addr, size)     (__range_ok((addr), (size)) == 0)
 
-static inline int verify_area(int type, const void *addr, unsigned long size)
-{
-	return access_ok(type, addr, size) ? 0 : -EFAULT;
-}
-
-
 /*
  * The exception table consists of pairs of addresses: the first is the
  * address of an instruction that is allowed to fault, and the second is
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index dfd0301..cd8cb1d 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -75,7 +75,7 @@ static int restore_sigcontext(struct pt_regs *regs,
 		struct fpucontext *buf;
 		err |= __get_user(buf, &sc->fpucontext);
 		if (buf) {
-			if (verify_area(VERIFY_READ, buf, sizeof(*buf)))
+			if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
 				goto badframe;
 			err |= fpu_restore_sigcontext(buf);
 		}
@@ -98,7 +98,7 @@ asmlinkage long sys_sigreturn(void)
 	long d0;
 
 	frame = (struct sigframe __user *) current_frame()->sp;
-	if (verify_area(VERIFY_READ, frame, sizeof(*frame)))
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
 	if (__get_user(set.sig[0], &frame->sc.oldmask))
 		goto badframe;
@@ -130,7 +130,7 @@ asmlinkage long sys_rt_sigreturn(void)
 	long d0;
 
 	frame = (struct rt_sigframe __user *) current_frame()->sp;
-	if (verify_area(VERIFY_READ, frame, sizeof(*frame)))
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
 		goto badframe;