UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm: Shift wrap bug in create_in_format_blob() 

"plane->format_count" can go up to 64.  (It's capped in
drm_universal_plane_init().)  So we should be using ULL type instead of
int here to prevent shift wrapping.

Fixes: db1689aa61 ("drm: Create a format/modifier blob")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170809111906.4rv3hzritctfktv3@mwanda
This commit is contained in:
Dan Carpenter 2017-08-09 14:19:06 +03:00 committed by Sean Paul
parent b27cc7b5b7
commit aadd41485b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/drm_plane.c
View File

@ -126,7 +126,7 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane
plane->format_types[j],
plane->modifiers[i])) {
mod->formats |= 1 << j;
mod->formats |= 1ULL << j;
}
}