From 8cfb347ad0cffdbfc69c82506fb3be9429563211 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 22 May 2020 15:23:21 +0100 Subject: [PATCH] arm64: Add get_user() type annotation on the !access_ok() path Sparse reports "Using plain integer as NULL pointer" when the arm64 __get_user_error() assigns 0 to a pointer type. Use proper type annotation. Signed-of-by: Al Viro Reported-by: kbuild test robot Link: http://lkml.kernel.org/r/20200522142321.GP23230@ZenIV.linux.org.uk Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 32fc8061aa76..bc5c7b091152 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -304,7 +304,7 @@ do { \ __p = uaccess_mask_ptr(__p); \ __raw_get_user((x), __p, (err)); \ } else { \ - (x) = 0; (err) = -EFAULT; \ + (x) = (__force __typeof__(x))0; (err) = -EFAULT; \ } \ } while (0) -- GitLab