Commit adfb69af authored by Anand Jain's avatar Anand Jain Committed by David Sterba

btrfs: add_missing_dev() should return the actual error

add_missing_dev() can return device pointer so that IS_ERR/PTR_ERR can
be used to check for the actual error that occurred in the function.
Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Reviewed-by: default avatarLiu Bo <bo.li.liu@oracle.com>
[ minor error message adjustment ]
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 9e882d6d
...@@ -6238,7 +6238,7 @@ static struct btrfs_device *add_missing_dev(struct btrfs_fs_devices *fs_devices, ...@@ -6238,7 +6238,7 @@ static struct btrfs_device *add_missing_dev(struct btrfs_fs_devices *fs_devices,
device = btrfs_alloc_device(NULL, &devid, dev_uuid); device = btrfs_alloc_device(NULL, &devid, dev_uuid);
if (IS_ERR(device)) if (IS_ERR(device))
return NULL; return device;
list_add(&device->dev_list, &fs_devices->devices); list_add(&device->dev_list, &fs_devices->devices);
device->fs_devices = fs_devices; device->fs_devices = fs_devices;
...@@ -6443,9 +6443,12 @@ static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key, ...@@ -6443,9 +6443,12 @@ static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
map->stripes[i].dev = map->stripes[i].dev =
add_missing_dev(fs_info->fs_devices, devid, add_missing_dev(fs_info->fs_devices, devid,
uuid); uuid);
if (!map->stripes[i].dev) { if (IS_ERR(map->stripes[i].dev)) {
free_extent_map(em); free_extent_map(em);
return -EIO; btrfs_err(fs_info,
"failed to init missing dev %llu: %ld",
devid, PTR_ERR(map->stripes[i].dev));
return PTR_ERR(map->stripes[i].dev);
} }
btrfs_report_missing_device(fs_info, devid, uuid); btrfs_report_missing_device(fs_info, devid, uuid);
} }
...@@ -6571,8 +6574,12 @@ static int read_one_dev(struct btrfs_fs_info *fs_info, ...@@ -6571,8 +6574,12 @@ static int read_one_dev(struct btrfs_fs_info *fs_info,
} }
device = add_missing_dev(fs_devices, devid, dev_uuid); device = add_missing_dev(fs_devices, devid, dev_uuid);
if (!device) if (IS_ERR(device)) {
return -ENOMEM; btrfs_err(fs_info,
"failed to add missing dev %llu: %ld",
devid, PTR_ERR(device));
return PTR_ERR(device);
}
btrfs_report_missing_device(fs_info, devid, dev_uuid); btrfs_report_missing_device(fs_info, devid, dev_uuid);
} else { } else {
if (!device->bdev) { if (!device->bdev) {
......
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