[PATCH] drm: radeon: replace 0 with NULL

[Jules Irenge]

Replace 0 with NULL to fix sparse tool  warning
 warning: Using plain integer as NULL pointer

Signed-off-by: Jules Irenge <jbi.octave at gmail.com>
---
 drivers/gpu/drm/radeon/radeon_audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index b9aea5776d3d..2269cfced788 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -288,7 +288,7 @@ static void radeon_audio_interface_init(struct radeon_device *rdev)
 	} else {
 		rdev->audio.funcs = &r600_funcs;
 		rdev->audio.hdmi_funcs = &r600_hdmi_funcs;
-		rdev->audio.dp_funcs = 0;
+		rdev->audio.dp_funcs = NULL;
 	}
 }
 
-- 
2.23.0