[PATCH] uml: hostfs failed mount handling

This cleans up the error handling and fixes a crash if a hostfs mount fails.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index e6c63d9cac7b..14a0d339d036 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -991,13 +991,17 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
                 goto out_put;
 
         err = read_inode(root_inode);
-        if(err)
-                goto out_put;
+        if(err){
+                /* No iput in this case because the dput does that for us */
+                dput(sb->s_root);
+                sb->s_root = NULL;
+                goto out_free;
+        }
 
         return(0);
 
  out_put:
-        iput(root_inode);
+        iput(root_inode);
  out_free:
         kfree(name);
  out: