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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-06 19:48:59 -0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-06 19:48:59 -0400
commitfff34b3412b9401a76ba9d021db1bd91cb0e02b6 (patch)
tree870ed2d1555004e7939d15b5099017aae61c97b8 /arch/x86/kernel/microcode_amd.c
parent28e1e58fb668e262648fb8ee8a24154633f40507 (diff)
parent636802ef96eebe279b22ad9f9dacfe29291e45c7 (diff)
Merge branch 'merge' into next
Brings in various bug fixes from 3.6-rcX
Diffstat (limited to 'arch/x86/kernel/microcode_amd.c')
-rw-r--r--arch/x86/kernel/microcode_amd.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 8a2ce8fd41c0..82746f942cd8 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -143,11 +143,12 @@ static int get_matching_microcode(int cpu, const u8 *ucode_ptr,
143 unsigned int *current_size) 143 unsigned int *current_size)
144{ 144{
145 struct microcode_header_amd *mc_hdr; 145 struct microcode_header_amd *mc_hdr;
146 unsigned int actual_size; 146 unsigned int actual_size, patch_size;
147 u16 equiv_cpu_id; 147 u16 equiv_cpu_id;
148 148
149 /* size of the current patch we're staring at */ 149 /* size of the current patch we're staring at */
150 *current_size = *(u32 *)(ucode_ptr + 4) + SECTION_HDR_SIZE; 150 patch_size = *(u32 *)(ucode_ptr + 4);
151 *current_size = patch_size + SECTION_HDR_SIZE;
151 152
152 equiv_cpu_id = find_equiv_id(); 153 equiv_cpu_id = find_equiv_id();
153 if (!equiv_cpu_id) 154 if (!equiv_cpu_id)
@@ -174,7 +175,7 @@ static int get_matching_microcode(int cpu, const u8 *ucode_ptr,
174 /* 175 /*
175 * now that the header looks sane, verify its size 176 * now that the header looks sane, verify its size
176 */ 177 */
177 actual_size = verify_ucode_size(cpu, *current_size, leftover_size); 178 actual_size = verify_ucode_size(cpu, patch_size, leftover_size);
178 if (!actual_size) 179 if (!actual_size)
179 return 0; 180 return 0;
180 181