If the coordinates are bigger than the size of
the panel then errors appear when calculating axis alignment
and the copy of bitmap is done outside of framebuffer.
Signed-off-by: Yannick Fertré <yannick.fer...@st.com>
---
drivers/video/video_bmp.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/video/video_bmp.c b/drivers/video/video_bmp.c
index 4af1fb4..74267f7 100644
--- a/drivers/video/video_bmp.c
+++ b/drivers/video/video_bmp.c
@@ -256,6 +256,19 @@ int video_bmp_display(struct udevice *dev, ulong
bmp_image, int x, int y,
return -EINVAL;
}
+ /* check if coordinates exceeds panel size */
+ if (pwidth < x && x != BMP_ALIGN_CENTER) {
+ printf("Error: Coordinate x %d is bigger than panel width %d\n",
+ (int)x, (int)pwidth);
+ return -EINVAL;
+ }
+
+ if (priv->ysize < y && y != BMP_ALIGN_CENTER) {
+ printf("Error: Coordinate y %d is bigger than panel height %d\n"
+ , (int)y, (int)priv->ysize);
+ return -EINVAL;
+ }
+
if (align) {
video_splash_align_axis(&x, priv->xsize, width);
video_splash_align_axis(&y, priv->ysize, height);
--
2.7.4
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