From 1b09b53e7dda7f8d4e7ec2927137f3b71327955a Mon Sep 17 00:00:00 2001 From: Nikita Kiryanov Date: Sun, 19 Aug 2012 19:32:30 +0000 Subject: [PATCH] common/lcd: add protection from null bmp pointer If the bmp pointer is null then U-Boot will get stuck when trying to load the image. What's worse, it will get stuck before the U-Boot shell becomes available to the user, thus making it difficult to correct the situation. To protect from the above scenario, check if the pointer is valid. Signed-off-by: Nikita Kiryanov --- common/lcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/common/lcd.c b/common/lcd.c index 88dfa51d77..fcc09ac7a8 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -674,7 +674,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) unsigned long pwidth = panel_info.vl_col; unsigned colors, bpix, bmp_bpix; - if (!((bmp->header.signature[0] == 'B') && + if (!bmp || !((bmp->header.signature[0] == 'B') && (bmp->header.signature[1] == 'M'))) { printf("Error: no valid bmp image at %lx\n", bmp_image); -- 2.39.5