linux-kernel - [PATCH] x86:aperture_64: drop not needed checking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130416013734.GA14641@udknight>
Date:	Tue, 16 Apr 2013 09:37:34 +0800
From:	Wang YanQing <udknight@...il.com>
To:	mingo@...nel.org
Cc:	yinghai@...nel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86:aperture_64: drop not needed checking


The memblock_find_in_range return value, addr, will
make sure "addr + aper_size" not beyond GART_MAX_ADDR.

Signed-off-by: Wang YanQing <udknight@...il.com>
---
 arch/x86/kernel/aperture_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index d5fd66f..fd972a3 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -87,7 +87,7 @@ static u32 __init allocate_aperture(void)
 	 */
 	addr = memblock_find_in_range(GART_MIN_ADDR, GART_MAX_ADDR,
 				      aper_size, aper_size);
-	if (!addr || addr + aper_size > GART_MAX_ADDR) {
+	if (!addr) {
 		printk(KERN_ERR
 			"Cannot allocate aperture memory hole (%lx,%uK)\n",
 				addr, aper_size>>10);
-- 
1.7.12.4.dirty
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/