linux-kernel - [PATCH 7/9] user_regset_copyout_zero(): use clear

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Message-Id: <20200529232723.44942-7-viro@ZenIV.linux.org.uk>
Date:   Sat, 30 May 2020 00:27:22 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH 7/9] user_regset_copyout_zero(): use clear_user()

From: Al Viro <viro@...iv.linux.org.uk>

that's the only caller of __clear_user() in generic code, and it's
not hot enough to bother with skipping access_ok().

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 include/linux/regset.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/regset.h b/include/linux/regset.h
index bf0243779738..46d6ae68c455 100644
--- a/include/linux/regset.h
+++ b/include/linux/regset.h
@@ -320,7 +320,7 @@ static inline int user_regset_copyout_zero(unsigned int *pos,
 		if (*kbuf) {
 			memset(*kbuf, 0, copy);
 			*kbuf += copy;
-		} else if (__clear_user(*ubuf, copy))
+		} else if (clear_user(*ubuf, copy))
 			return -EFAULT;
 		else
 			*ubuf += copy;
-- 
2.11.0