[PATCH] ASoC: fsl_utils: Don't use plain integer as NULL pointer

[Shengjiu Wang <shengjiu.wang@xxxxxxx>]

Fix sparse warning:
sound/soc/fsl/fsl_utils.c:125:31: sparse: warning: Using plain integer as NULL pointer
sound/soc/fsl/fsl_utils.c:125:42: sparse: warning: Using plain integer as NULL pointer

Fixes: 7bad8125549c ("ASoC: fsl_utils: Add function to handle PLL clock source")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
---
 sound/soc/fsl/fsl_utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
index b75843e31f00..3e969c7bc1c5 100644
--- a/sound/soc/fsl/fsl_utils.c
+++ b/sound/soc/fsl/fsl_utils.c
@@ -122,7 +122,7 @@ void fsl_asoc_reparent_pll_clocks(struct device *dev, struct clk *clk,
 				  struct clk *pll8k_clk,
 				  struct clk *pll11k_clk, u64 ratio)
 {
-	struct clk *p, *pll = 0, *npll = 0;
+	struct clk *p, *pll = NULL, *npll = NULL;
 	bool reparent = false;
 	int ret = 0;
 
-- 
2.34.1