ALSA: Fix debugfs_create_dir's error checking method for sound/soc/
Zhaolei [Fri, 17 Oct 2008 13:04:55 +0000 (21:04 +0800)]
debugfs_create_dir() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/soc/soc-dapm.c

index efbd0b3..7351db9 100644 (file)
@@ -831,7 +831,7 @@ int snd_soc_dapm_sys_add(struct device *dev)
                return ret;
 
        asoc_debugfs = debugfs_create_dir("asoc", NULL);
-       if (!IS_ERR(asoc_debugfs))
+       if (!IS_ERR(asoc_debugfs) && asoc_debugfs)
                debugfs_create_u32("dapm_pop_time", 0744, asoc_debugfs,
                                   &pop_time);
        else