diff options
| author | Thorsten Blum <thorsten.blum@linux.dev> | 2026-03-01 13:51:07 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-03-27 21:19:38 -0700 |
| commit | defec2ca7cd743c9b8a29be5012ad7381a5ecbb3 (patch) | |
| tree | 25faa3ee83dfa85101b344a995b9486ee43f85c6 /kernel | |
| parent | 90c73d0bfa36ea80f3a55f5426daa46fa2795957 (diff) | |
crash_dump: use sysfs_emit in sysfs show functions
Replace sprintf() with sysfs_emit() in sysfs show functions. sysfs_emit()
is preferred for formatting sysfs output because it provides safer bounds
checking. No functional changes.
Link: https://lkml.kernel.org/r/20260301125106.911980-2-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/crash_dump_dm_crypt.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/crash_dump_dm_crypt.c b/kernel/crash_dump_dm_crypt.c index 03fce24f1947..8638b821ce58 100644 --- a/kernel/crash_dump_dm_crypt.c +++ b/kernel/crash_dump_dm_crypt.c @@ -6,6 +6,7 @@ #include <linux/cc_platform.h> #include <linux/configfs.h> #include <linux/module.h> +#include <linux/sysfs.h> #define KEY_NUM_MAX 128 /* maximum dm crypt keys */ #define KEY_SIZE_MAX 256 /* maximum dm crypt key size */ @@ -189,7 +190,7 @@ static inline struct config_key *to_config_key(struct config_item *item) static ssize_t config_key_description_show(struct config_item *item, char *page) { - return sprintf(page, "%s\n", to_config_key(item)->description); + return sysfs_emit(page, "%s\n", to_config_key(item)->description); } static ssize_t config_key_description_store(struct config_item *item, @@ -265,7 +266,7 @@ static struct config_item *config_keys_make_item(struct config_group *group, static ssize_t config_keys_count_show(struct config_item *item, char *page) { - return sprintf(page, "%d\n", key_count); + return sysfs_emit(page, "%d\n", key_count); } CONFIGFS_ATTR_RO(config_keys_, count); @@ -274,7 +275,7 @@ static bool is_dm_key_reused; static ssize_t config_keys_reuse_show(struct config_item *item, char *page) { - return sprintf(page, "%d\n", is_dm_key_reused); + return sysfs_emit(page, "%d\n", is_dm_key_reused); } static ssize_t config_keys_reuse_store(struct config_item *item, @@ -321,7 +322,7 @@ static bool restore; static ssize_t config_keys_restore_show(struct config_item *item, char *page) { - return sprintf(page, "%d\n", restore); + return sysfs_emit(page, "%d\n", restore); } static ssize_t config_keys_restore_store(struct config_item *item, |