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-rw-r--r--drivers/block/rsxx/cregs.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/block/rsxx/cregs.c b/drivers/block/rsxx/cregs.c
index 4914464c19fc..926dce9c452f 100644
--- a/drivers/block/rsxx/cregs.c
+++ b/drivers/block/rsxx/cregs.c
@@ -431,6 +431,15 @@ static int __issue_creg_rw(struct rsxx_cardinfo *card,
*hw_stat = completion.creg_status;
if (completion.st) {
+ /*
+ * This read is needed to verify that there has not been any
+ * extreme errors that might have occurred, i.e. EEH. The
+ * function iowrite32 will not detect EEH errors, so it is
+ * necessary that we recover if such an error is the reason
+ * for the timeout. This is a dummy read.
+ */
+ ioread32(card->regmap + SCRATCH);
+
dev_warn(CARD_TO_DEV(card),
"creg command failed(%d x%08x)\n",
completion.st, addr);