1 files changed, 8 insertions, 3 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 610e8e0b04b8..966617a422d9 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -355,20 +355,25 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
         mutex_lock(&bd_inode->i_mutex);
         size = i_size_read(bd_inode);
 
+        retval = -EINVAL;
         switch (origin) {
-                case 2:
+                case SEEK_END:
                         offset += size;
                         break;
-                case 1:
+                case SEEK_CUR:
                         offset += file->f_pos;
+                case SEEK_SET:
+                        break;
+                default:
+                        goto out;
         }
-        retval = -EINVAL;
         if (offset >= 0 && offset <= size) {
                 if (offset != file->f_pos) {
                         file->f_pos = offset;
                 }
                 retval = offset;
         }
+out:
         mutex_unlock(&bd_inode->i_mutex);
         return retval;
 }