New patch to review for coreboot: 4feff8e Don't attempt to use null pointer (happens when no update is available) as microcode update

[Vladimir Serbinenko]

Vladimir Serbinenko ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2990

-gerrit

commit 4feff8eed45d70fe1aec65dcadf83fbce7297b6b
Author: Vladimir Serbinenko 
Date:   Sat Mar 30 12:04:23 2013 +0100

Don't attempt to use null pointer (happens when no update is available) as microcode update

Change-Id: I6e18fd37256910bf047061e4633a66cf29ad7b69
    Signed-off-by: Vladimir Serbinenko 
---
 src/cpu/intel/microcode/microcode.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cpu/intel/microcode/microcode.c b/src/cpu/intel/microcode/microcode.c
index d908c25..327559b 100644
--- a/src/cpu/intel/microcode/microcode.c
+++ b/src/cpu/intel/microcode/microcode.c
@@ -202,6 +202,9 @@ void intel_update_microcode(const void *microcode_updates)
    const char *c;
    msr_t msr;

+	if (!microcode_updates)
+	  return;
+
    /* CPUID sets MSR 0x8B iff a microcode update has been loaded. */
    msr.lo = 0;
    msr.hi = 0;