[PATCH] ASoC: topology: Fix using uninitialized pointer

[Jaska Uimonen <jaska.uimonen@linux.intel.com>]

The original patch changed kcontrol_type to a pointer. In some goto
cases the pointer is assigned into a struct member as uninitialized and
this will cause a runtime error with UBSan even if it isn't a real bug.
So initialize the pointer to NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: d29d41e28eea ("ASoC: topology: Add support for multiple kcontrol types to a widget")
Signed-off-by: Jaska Uimonen <jaska.uimonen@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
---
 sound/soc/soc-topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index e71d98d7b116..5e65b72910e9 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1422,7 +1422,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
 	struct snd_soc_dapm_widget template, *widget;
 	struct snd_soc_tplg_ctl_hdr *control_hdr;
 	struct snd_soc_card *card = tplg->comp->card;
-	unsigned int *kcontrol_type;
+	unsigned int *kcontrol_type = NULL;
 	struct snd_kcontrol_new *kc;
 	int mixer_count = 0;
 	int bytes_count = 0;
-- 
2.24.1