diff options
| author | Petr Mladek <pmladek@suse.com> | 2016-12-15 02:04:01 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-15 03:04:07 +0300 |
| commit | 40f7828b36e3b9dd2fdc34d065e342cddf8d7bef (patch) | |
| tree | 886d664a7ea0a22f87013bb83c4c12e51611b72e | |
| parent | 775a2e29c3bbcf853432f47d3caa9ff8808807ad (diff) | |
| download | linux-40f7828b36e3b9dd2fdc34d065e342cddf8d7bef.tar.xz | |
btrfs: better handle btrfs_printk() defaults
Commit 262c5e86fec7 ("printk/btrfs: handle more message headers")
triggers:
warning: `ratelimit' may be used uninitialized in this function
with gcc (4.1.2) and probably many other versions. The code actually is
correct but a bit twisted. Let's make it more straightforward and set
the default values at the beginning.
Link: http://lkml.kernel.org/r/20161213135246.GQ3506@pathway.suse.cz
Signed-off-by: Petr Mladek <pmladek@suse.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/btrfs/super.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 180f910339f4..3b713b6fcc26 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -202,12 +202,12 @@ static struct ratelimit_state printk_limits[] = { void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) { struct super_block *sb = fs_info->sb; - char lvl[PRINTK_MAX_SINGLE_HEADER_LEN + 1]; + char lvl[PRINTK_MAX_SINGLE_HEADER_LEN + 1] = "\0"; struct va_format vaf; va_list args; - const char *type = NULL; int kern_level; - struct ratelimit_state *ratelimit; + const char *type = logtypes[4]; + struct ratelimit_state *ratelimit = &printk_limits[4]; va_start(args, fmt); @@ -223,12 +223,6 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) fmt += size; } - if (!type) { - *lvl = '\0'; - type = logtypes[4]; - ratelimit = &printk_limits[4]; - } - vaf.fmt = fmt; vaf.va = &args; |