diff options
Diffstat (limited to 'mm/hwpoison-inject.c')
| -rw-r--r-- | mm/hwpoison-inject.c | 68 |
1 files changed, 23 insertions, 45 deletions
diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c index b6ac70616c32..5b7430bd83a6 100644 --- a/mm/hwpoison-inject.c +++ b/mm/hwpoison-inject.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* Inject a hwpoison memory failure on a arbitrary pfn */ #include <linux/module.h> #include <linux/debugfs.h> @@ -76,63 +77,40 @@ static void pfn_inject_exit(void) static int pfn_inject_init(void) { - struct dentry *dentry; - hwpoison_dir = debugfs_create_dir("hwpoison", NULL); - if (hwpoison_dir == NULL) - return -ENOMEM; /* * Note that the below poison/unpoison interfaces do not involve * hardware status change, hence do not require hardware support. * They are mainly for testing hwpoison in software level. */ - dentry = debugfs_create_file("corrupt-pfn", 0200, hwpoison_dir, - NULL, &hwpoison_fops); - if (!dentry) - goto fail; - - dentry = debugfs_create_file("unpoison-pfn", 0200, hwpoison_dir, - NULL, &unpoison_fops); - if (!dentry) - goto fail; - - dentry = debugfs_create_u32("corrupt-filter-enable", 0600, - hwpoison_dir, &hwpoison_filter_enable); - if (!dentry) - goto fail; - - dentry = debugfs_create_u32("corrupt-filter-dev-major", 0600, - hwpoison_dir, &hwpoison_filter_dev_major); - if (!dentry) - goto fail; - - dentry = debugfs_create_u32("corrupt-filter-dev-minor", 0600, - hwpoison_dir, &hwpoison_filter_dev_minor); - if (!dentry) - goto fail; - - dentry = debugfs_create_u64("corrupt-filter-flags-mask", 0600, - hwpoison_dir, &hwpoison_filter_flags_mask); - if (!dentry) - goto fail; - - dentry = debugfs_create_u64("corrupt-filter-flags-value", 0600, - hwpoison_dir, &hwpoison_filter_flags_value); - if (!dentry) - goto fail; + debugfs_create_file("corrupt-pfn", 0200, hwpoison_dir, NULL, + &hwpoison_fops); + + debugfs_create_file("unpoison-pfn", 0200, hwpoison_dir, NULL, + &unpoison_fops); + + debugfs_create_u32("corrupt-filter-enable", 0600, hwpoison_dir, + &hwpoison_filter_enable); + + debugfs_create_u32("corrupt-filter-dev-major", 0600, hwpoison_dir, + &hwpoison_filter_dev_major); + + debugfs_create_u32("corrupt-filter-dev-minor", 0600, hwpoison_dir, + &hwpoison_filter_dev_minor); + + debugfs_create_u64("corrupt-filter-flags-mask", 0600, hwpoison_dir, + &hwpoison_filter_flags_mask); + + debugfs_create_u64("corrupt-filter-flags-value", 0600, hwpoison_dir, + &hwpoison_filter_flags_value); #ifdef CONFIG_MEMCG - dentry = debugfs_create_u64("corrupt-filter-memcg", 0600, - hwpoison_dir, &hwpoison_filter_memcg); - if (!dentry) - goto fail; + debugfs_create_u64("corrupt-filter-memcg", 0600, hwpoison_dir, + &hwpoison_filter_memcg); #endif return 0; -fail: - pfn_inject_exit(); - return -ENOMEM; } module_init(pfn_inject_init); |