linux-kernel - [PATCH 7/9] m32r: test below 0 on unsigned relocation

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Message-ID: <488529F3.5090804@gmail.com>
Date:	Mon, 21 Jul 2008 20:29:39 -0400
From:	roel kluin <roel.kluin@...il.com>
To:	takata@...ux-m32r.org, linux-m32r@...linux-m32r.org
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH 7/9] m32r: test below 0 on unsigned relocation

Elf32_Addr relocation is unsigned so the test doesn't work.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
diff --git a/arch/m32r/kernel/module.c b/arch/m32r/kernel/module.c
index 8d42057..0af86f9 100644
--- a/arch/m32r/kernel/module.c
+++ b/arch/m32r/kernel/module.c
@@ -172,7 +172,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 			break;
 		case R_M32R_18_PCREL_RELA:
 	  		relocation = (relocation - (Elf32_Addr) location);
-			if (relocation < -0x20000 || 0x1fffc < relocation)
+			if (relocation > 0x1fffc)
 				{
 					printk(KERN_ERR "module %s: relocation overflow: %u\n",
 					me->name, relocation);
@@ -204,7 +204,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 			break;
 		case R_M32R_26_PCREL_RELA:
 	  		relocation = (relocation - (Elf32_Addr) location);
-			if (relocation < -0x2000000 || 0x1fffffc < relocation)
+			if (relocation > 0x1fffffc)
 				{
 					printk(KERN_ERR "module %s: relocation overflow: %u\n",
 					me->name, relocation);
--
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