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Btrfs: Return value checking in module init

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Wyatt Banks
2007-11-19 10:22:33 -05:00
committed by Chris Mason
parent 3acd7ee876
commit 2f4cbe6442
3 changed files with 33 additions and 6 deletions
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16
fs/btrfs/extent_map.c
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@@ -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)