[PATCH] drm/udl: Use NULL instead of 0 for pointers

[Sachin Kamat]

Fixes the following sparse warnings:
drivers/gpu/drm/udl/udl_transfer.c:129:50:
drivers/gpu/drm/udl/udl_transfer.c:130:50:
drivers/gpu/drm/udl/udl_transfer.c:131:45:
drivers/gpu/drm/udl/udl_transfer.c:132:61:
warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat at linaro.org>
---
 drivers/gpu/drm/udl/udl_transfer.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c
index b9320e2..f9fff65 100644
--- a/drivers/gpu/drm/udl/udl_transfer.c
+++ b/drivers/gpu/drm/udl/udl_transfer.c
@@ -126,10 +126,10 @@ static void udl_compress_hline16(
 
 	while ((pixel_end > pixel) &&
 	       (cmd_buffer_end - MIN_RLX_CMD_BYTES > cmd)) {
-		uint8_t *raw_pixels_count_byte = 0;
-		uint8_t *cmd_pixels_count_byte = 0;
-		const u8 *raw_pixel_start = 0;
-		const u8 *cmd_pixel_start, *cmd_pixel_end = 0;
+		uint8_t *raw_pixels_count_byte = NULL;
+		uint8_t *cmd_pixels_count_byte = NULL;
+		const u8 *raw_pixel_start = NULL;
+		const u8 *cmd_pixel_start, *cmd_pixel_end = NULL;
 
 		prefetchw((void *) cmd); /* pull in one cache line at least */
 
-- 
1.7.4.1