ALSA: Fix debugfs_create_dir's error checking method for sound/soc/

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index efbd0b37810..7351db9606e 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -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