[PATCH] Error checks omitted in init_tmpfs() in mm/tiny-shmem.c

From: Hareesh Nagarajan <hnagar2@gmail.com>

Signed-off-by: Hareesh Nagarajan <hnagar2@gmail.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index c13a2161bca2..b58abcf44ed6 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -31,11 +31,14 @@ static struct vfsmount *shm_mnt;
 
 static int __init init_tmpfs(void)
 {
-        register_filesystem(&tmpfs_fs_type);
+        BUG_ON(register_filesystem(&tmpfs_fs_type) != 0);
+
 #ifdef CONFIG_TMPFS
         devfs_mk_dir("shm");
 #endif
         shm_mnt = kern_mount(&tmpfs_fs_type);
+        BUG_ON(IS_ERR(shm_mnt));
+
         return 0;
 }
 module_init(init_tmpfs)