From 2f3dc85d233fce3345eb1880ec44349d7b290211 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 19 Oct 2012 18:45:53 -0700 Subject: use clamp_t in UNAME26 fix commit 31fd84b95eb211d5db460a1dda85e004800a7b52 upstream. The min/max call needed to have explicit types on some architectures (e.g. mn10300). Use clamp_t instead to avoid the warning: kernel/sys.c: In function 'override_release': kernel/sys.c:1287:10: warning: comparison of distinct pointer types lacks a cast [enabled by default] Reported-by: Fengguang Wu Signed-off-by: Kees Cook Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- kernel/sys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sys.c b/kernel/sys.c index 46ca435564c..84e353b1820 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1152,7 +1152,7 @@ static int override_release(char __user *release, size_t len) rest++; } v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40; - copy = min(sizeof(buf), max_t(size_t, 1, len)); + copy = clamp_t(size_t, len, 1, sizeof(buf)); copy = scnprintf(buf, copy, "2.6.%u%s", v, rest); ret = copy_to_user(release, buf, copy + 1); } -- cgit v1.2.3-18-g5258