[PATCH 2/6] video: stm: use DMA_ADDRESS_BROKEN instead of NULL

[Ahmad Fatoum]

While functionally the same, DMA_ADDRESS_BROKEN marks that the code is
in need of improvement, so it should be used for documentation purposes.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 drivers/video/stm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/stm.c b/drivers/video/stm.c
index 917405ea801f..c88b71195eac 100644
--- a/drivers/video/stm.c
+++ b/drivers/video/stm.c
@@ -325,7 +325,7 @@ static int stmfb_activate_var(struct fb_info *fb_info)
 		remap_range(fbi->fixed_screen,
 				fbi->fixed_screen_size, MAP_UNCACHED);
 	} else {
-		fb_info->screen_base = dma_alloc_coherent(size, NULL);
+		fb_info->screen_base = dma_alloc_coherent(size, DMA_ADDRESS_BROKEN);
 		if (!fb_info->screen_base)
 			return -ENOMEM;
 		fbi->memory_size = size;
-- 
2.39.5