f2fs: replace snprintf in show functions with sysfs_emit

coccicheck complains about the use of snprintf() in sysfs show functions.

Fix the following coccicheck warning:
fs/f2fs/sysfs.c:198:12-20: WARNING: use scnprintf or sprintf.
fs/f2fs/sysfs.c:247:8-16: WARNING: use scnprintf or sprintf.

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Signed-off-by: Qing Wang <wangqing@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index a32fe31c33b8e414c6dffbc30f0e83a38bc85591..0fb891efdeadaae791044c9ed10a6b1fe6a2323c 100644 (file)
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -196,7 +196,7 @@ static ssize_t encoding_show(struct f2fs_attr *a,
        struct super_block *sb = sbi->sb;
 
        if (f2fs_sb_has_casefold(sbi))
-               return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
+               return sysfs_emit(buf, "%s (%d.%d.%d)\n",
                        sb->s_encoding->charset,
                        (sb->s_encoding->version >> 16) & 0xff,
                        (sb->s_encoding->version >> 8) & 0xff,
@@ -245,7 +245,7 @@ static ssize_t avg_vblocks_show(struct f2fs_attr *a,
 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
                                struct f2fs_sb_info *sbi, char *buf)
 {
-       return snprintf(buf, PAGE_SIZE, "%llu\n",
+       return sysfs_emit(buf, "%llu\n",
                        (unsigned long long)MAIN_BLKADDR(sbi));
 }