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authorWyatt Banks <wyatt@banksresearch.com>2007-11-19 10:22:33 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:03:58 -0400
commit2f4cbe6442d3be7b5e4cf1607a5ab33995fe2d25 (patch)
treea2c1554296d2d8252fb1748dd06c589572e5be54 /fs/btrfs/extent_map.c
parent3acd7ee876c508973eb4722de5b00b3dff4c7372 (diff)
Btrfs: Return value checking in module init
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_map.c')
-rw-r--r--fs/btrfs/extent_map.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index b3ff63c4bf2..f91f28efdb5 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -42,18 +42,30 @@ struct extent_page_data {
struct extent_map_tree *tree;
get_extent_t *get_extent;
};
-
-void __init extent_map_init(void)
+int __init extent_map_init(void)
{
extent_map_cache = btrfs_cache_create("extent_map",
sizeof(struct extent_map), 0,
NULL);
+ if (!extent_map_cache)
+ return -ENOMEM;
extent_state_cache = btrfs_cache_create("extent_state",
sizeof(struct extent_state), 0,
NULL);
+ if (!extent_state_cache)
+ goto free_map_cache;
extent_buffer_cache = btrfs_cache_create("extent_buffers",
sizeof(struct extent_buffer), 0,
NULL);
+ if (!extent_buffer_cache)
+ goto free_state_cache;
+ return 0;
+
+free_state_cache:
+ kmem_cache_destroy(extent_state_cache);
+free_map_cache:
+ kmem_cache_destroy(extent_map_cache);
+ return -ENOMEM;
}
void __exit extent_map_exit(void)