1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 0034c4844428..07efed452a15 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -283,8 +283,9 @@ static const u32 correrrthrsld[] = {
  * sbridge structs
  */
 
-#define NUM_CHANNELS    4
-#define MAX_DIMMS       3               /* Max DIMMS per channel */
+#define NUM_CHANNELS            4
+#define MAX_DIMMS               3       /* Max DIMMS per channel */
+#define CHANNEL_UNSPECIFIED     0xf     /* Intel IA32 SDM 15-14 */
 
 enum type {
         SANDY_BRIDGE,
@@ -1991,6 +1992,9 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 
         /* FIXME: need support for channel mask */
 
+        if (channel == CHANNEL_UNSPECIFIED)
+                channel = -1;
+
         /* Call the helper to output message */
         edac_mc_handle_error(tp_event, mci, core_err_cnt,
                              m->addr >> PAGE_SHIFT, m->addr & ~PAGE_MASK, 0,