[GIT PULL] x86 fix

[Ingo Molnar]

Linus,

Please pull the latest x86-fixes-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus

 Thanks,

	Ingo

------------------>
Jesper Juhl (1):
      x86/microcode: Fix double vfree() and remove redundant pointer checks before vfree()


 arch/x86/kernel/microcode_intel.c |   16 +++++-----------
 1 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c
index dcb65cc..1a1b606 100644
--- a/arch/x86/kernel/microcode_intel.c
+++ b/arch/x86/kernel/microcode_intel.c
@@ -364,8 +364,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
 
 		/* For performance reasons, reuse mc area when possible */
 		if (!mc || mc_size > curr_mc_size) {
-			if (mc)
-				vfree(mc);
+			vfree(mc);
 			mc = vmalloc(mc_size);
 			if (!mc)
 				break;
@@ -374,13 +373,11 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
 
 		if (get_ucode_data(mc, ucode_ptr, mc_size) ||
 		    microcode_sanity_check(mc) < 0) {
-			vfree(mc);
 			break;
 		}
 
 		if (get_matching_microcode(&uci->cpu_sig, mc, new_rev)) {
-			if (new_mc)
-				vfree(new_mc);
+			vfree(new_mc);
 			new_rev = mc_header.rev;
 			new_mc  = mc;
 			mc = NULL;	/* trigger new vmalloc */
@@ -390,12 +387,10 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
 		leftover  -= mc_size;
 	}
 
-	if (mc)
-		vfree(mc);
+	vfree(mc);
 
 	if (leftover) {
-		if (new_mc)
-			vfree(new_mc);
+		vfree(new_mc);
 		state = UCODE_ERROR;
 		goto out;
 	}
@@ -405,8 +400,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
 		goto out;
 	}
 
-	if (uci->mc)
-		vfree(uci->mc);
+	vfree(uci->mc);
 	uci->mc = (struct microcode_intel *)new_mc;
 
 	pr_debug("CPU%d found a matching microcode update with version 0x%x (current=0x%x)\n",
--
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