1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 05751a677da4..c1618ab9fecf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2147,6 +2147,10 @@ int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,
                         u64 bytes;
                         struct request_queue *req_q;
 
+                        if (!stripe->dev->bdev) {
+                                ASSERT(btrfs_test_opt(fs_info, DEGRADED));
+                                continue;
+                        }
                         req_q = bdev_get_queue(stripe->dev->bdev);
                         if (!blk_queue_discard(req_q))
                                 continue;