[lkml]   [2011]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[patch -next] x86, microcode, AMD: signedness bug in generic_load_microcode()
install_equiv_cpu_table() returns type int.  It uses negative error
codes so using an unsigned type breaks the error handling.

Signed-off-by: Dan Carpenter <>

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 9fb8405..c561038 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -246,7 +246,7 @@ generic_load_microcode(int cpu, const u8 *data, size_t size)
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
struct microcode_header_amd *mc_hdr = NULL;
unsigned int mc_size, leftover;
- unsigned long offset;
+ int offset;
const u8 *ucode_ptr = data;
void *new_mc = NULL;
unsigned int new_rev = uci->cpu_sig.rev;

 \ /
  Last update: 2011-02-18 10:19    [W:0.074 / U:10.828 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site