btrfs: handle discard errors in in btrfs_finish_extent_commit()

Coverity (ID: 1226842) reported that the return value of
btrfs_discard_extent() is assigned to ret but is immediately
overwritten by unpin_extent_range() without being checked.

Use the same error handling that is done later in the same function.

Signed-off-by: Jingkai Tan <contact@jingk.ai>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jingkai Tan 2026-01-22 21:14:10 +00:00 • committed by David Sterba
commit 2970525f78