[PATCH] md: Avoid oops when attempting to fix read errors on raid10
authorNeilBrown <neilb@suse.de>
Mon, 1 May 2006 19:15:44 +0000 (12:15 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 2 May 2006 01:17:42 +0000 (18:17 -0700)
We should add to the counter for the rdev *after* checking if the rdev is
NULL!!!

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/md/raid10.c

index 617012bc107a0205c597890d5167f03d86c45475..ddc1dfc4d3d2e57735f0ae77c09a88c97b47c1c5 100644 (file)
@@ -1435,9 +1435,9 @@ static void raid10d(mddev_t *mddev)
                                                sl--;
                                                d = r10_bio->devs[sl].devnum;
                                                rdev = conf->mirrors[d].rdev;
-                                               atomic_add(s, &rdev->corrected_errors);
                                                if (rdev &&
                                                    test_bit(In_sync, &rdev->flags)) {
+                                                       atomic_add(s, &rdev->corrected_errors);
                                                        if (sync_page_io(rdev->bdev,
                                                                         r10_bio->devs[sl].addr +
                                                                         sect + rdev->data_offset,