In case of read errors raid10d tries to print a nice error message,
unfortunately using data from an already put bio.
Signed-off-by: Maik Hampel <[email protected]>
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index f730a14..ea1b3e3 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1557,7 +1557,6 @@ static void raid10d(mddev_t *mddev)
bio = r10_bio->devs[r10_bio->read_slot].bio;
r10_bio->devs[r10_bio->read_slot].bio =
mddev->ro ? IO_BLOCKED : NULL;
- bio_put(bio);
mirror = read_balance(conf, r10_bio);
if (mirror == -1) {
printk(KERN_ALERT "raid10: %s: unrecoverable I/O"
@@ -1567,6 +1566,7 @@ static void raid10d(mddev_t *mddev)
raid_end_bio_io(r10_bio);
} else {
const int do_sync = bio_sync(r10_bio->master_bio);
+ bio_put(bio);
rdev = conf->mirrors[mirror].rdev;
if (printk_ratelimit())
printk(KERN_ERR "raid10: %s: redirecting sector %llu to"
-
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