mmc: block: add eMMC hardware reset support
For cards that support hardware reset (just eMMC), try a reset and
retry before returning an I/O error. However this is not done for
ECC errors and is never done twice for the same operation type
(READ, WRITE, DISCARD, SECURE DISCARD) until that type of operation
again succeeds.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index da6bd95..9698d8a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1529,7 +1529,7 @@
if (err) {
printk(KERN_ERR "mmc_erase: group start error %d, "
"status %#x\n", err, cmd.resp[0]);
- err = -EINVAL;
+ err = -EIO;
goto out;
}
@@ -1544,7 +1544,7 @@
if (err) {
printk(KERN_ERR "mmc_erase: group end error %d, status %#x\n",
err, cmd.resp[0]);
- err = -EINVAL;
+ err = -EIO;
goto out;
}