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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-22 16:21:09 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-03 15:39:39 +0200
commit4268509a36a79a6e449a4937d88bb4d21f8b2078 (patch)
tree0601d78abedaf2021fed06cb5d12707ef33cb8cb
parent3e6f176f304ee8effec698ebaff6b7baecb5e1e6 (diff)
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zsmalloc: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: linux-mm@kvack.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--mm/zsmalloc.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 0787d33b80d8..1347d7922ea2 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -575,8 +575,6 @@ static void __init zs_stat_init(void)
}
zs_stat_root = debugfs_create_dir("zsmalloc", NULL);
- if (!zs_stat_root)
- pr_warn("debugfs 'zsmalloc' stat dir creation failed\n");
}
static void __exit zs_stat_exit(void)
@@ -654,22 +652,10 @@ static void zs_pool_stat_create(struct zs_pool *pool, const char *name)
return;
}
- entry = debugfs_create_dir(name, zs_stat_root);
- if (!entry) {
- pr_warn("debugfs dir <%s> creation failed\n", name);
- return;
- }
- pool->stat_dentry = entry;
-
- entry = debugfs_create_file("classes", S_IFREG | 0444,
- pool->stat_dentry, pool,
- &zs_stats_size_fops);
- if (!entry) {
- pr_warn("%s: debugfs file entry <%s> creation failed\n",
- name, "classes");
- debugfs_remove_recursive(pool->stat_dentry);
- pool->stat_dentry = NULL;
- }
+ pool->stat_dentry = debugfs_create_dir(name, zs_stat_root);
+
+ debugfs_create_file("classes", S_IFREG | 0444, pool->stat_dentry, pool,
+ &zs_stats_size_fops);
}
static void zs_pool_stat_destroy(struct zs_pool *pool)