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Btrfs: SB read failure should return EIO for __bread failure

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This will return EIO when __bread() fails to read SB,
instead of EINVAL.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2015-08-14 18:32:51 +08:00
committed by David Sterba
parent c1b7e47459
commit 92fc03fbdc
2 changed files with 19 additions and 7 deletions
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8
fs/btrfs/volumes.c
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@@ -211,8 +211,8 @@ btrfs_get_bdev_and_sb(const char *device_path, fmode_t flags, void *holder,
}
invalidate_bdev(*bdev);
*bh = btrfs_read_dev_super(*bdev);
if (!*bh) {
ret = -EINVAL;
if (IS_ERR(*bh)) {
ret = PTR_ERR(*bh);
blkdev_put(*bdev, flags);
goto error;
}
@@ -6746,8 +6746,8 @@ int btrfs_scratch_superblock(struct btrfs_device *device)
struct btrfs_super_block *disk_super;
bh = btrfs_read_dev_super(device->bdev);
if (!bh)
return -EINVAL;
if (IS_ERR(bh))
return PTR_ERR(bh);
disk_super = (struct btrfs_super_block *)bh->b_data;
memset(&disk_super->magic, 0, sizeof(disk_super->magic));