1 files changed, 3 insertions, 0 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 1900ec7a1579..b189cb4ff20f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4902,6 +4902,8 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 
         if (unlikely(minlen > EXT4_BLOCKS_PER_GROUP(sb)))
                 return -EINVAL;
+        if (start + len <= first_data_blk)
+                goto out;
         if (start < first_data_blk) {
                 len -= first_data_blk - start;
                 start = first_data_blk;
@@ -4950,5 +4952,6 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
         }
         range->len = trimmed * sb->s_blocksize;
 
+out:
         return ret;
 }