[PATCH] bcm2835-audio: Fix checkpatch errors

[Man Choy]

Fix following errors:

ERROR: do not initialise statics to NULL
+static struct snd_card *g_card = NULL;

ERROR: do not initialise statics to NULL
+static struct bcm2835_chip *g_chip = NULL;

Signed-off-by: Man Choy <manchoyy at gmail.com>
---
 drivers/staging/bcm2835-audio/bcm2835.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/bcm2835-audio/bcm2835.c b/drivers/staging/bcm2835-audio/bcm2835.c
index a84d74d..265fe55 100644
--- a/drivers/staging/bcm2835-audio/bcm2835.c
+++ b/drivers/staging/bcm2835-audio/bcm2835.c
@@ -28,8 +28,8 @@
  * to debug if we run into issues
  */
 
-static struct snd_card *g_card = NULL;
-static struct bcm2835_chip *g_chip = NULL;
+static struct snd_card *g_card;
+static struct bcm2835_chip *g_chip;
 
 static int snd_bcm2835_free(struct bcm2835_chip *chip)
 {
-- 
2.7.4