[SCSI] qla2xxx: Clear EFT buffer before firmware reinitialization.

To insure that there is no stale data present during EFT
re-registration.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 2e51fa8..97063cb 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3259,6 +3259,7 @@
 			clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
 
 			if (ha->eft) {
+				memset(ha->eft, 0, EFT_SIZE);
 				rval = qla2x00_enable_eft_trace(ha,
 				    ha->eft_dma, EFT_NUM_BUFFERS);
 				if (rval) {