[PATCH] ASoC: sprd: Fix the smatch warning

[Baolin Wang]

Remove the unnecessary validation of the 'cstream' variable to fix
below smatch warning:

sprd_platform_compr_drain_notify() warn: variable dereferenced
before check 'cstream' (see line 105)

Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 sound/soc/sprd/sprd-pcm-compress.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/sprd/sprd-pcm-compress.c b/sound/soc/sprd/sprd-pcm-compress.c
index dc84257cffc2..424e9834d093 100644
--- a/sound/soc/sprd/sprd-pcm-compress.c
+++ b/sound/soc/sprd/sprd-pcm-compress.c
@@ -107,8 +107,7 @@ static void sprd_platform_compr_drain_notify(void *arg)
 
 	memset(stream->info_area, 0, sizeof(struct sprd_compr_playinfo));
 
-	if (cstream)
-		snd_compr_drain_notify(cstream);
+	snd_compr_drain_notify(cstream);
 }
 
 static void sprd_platform_compr_dma_complete(void *data)
-- 
2.20.1