This is a note to let you know that I've just added the patch titled
drm/edid: Fix uninitialized variable in drm_cvt_modes()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-edid-fix-uninitialized-variable-in-drm_cvt_modes.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 991fcb77f490390bcad89fa67d95763c58cdc04c Mon Sep 17 00:00:00 2001
From: Lyude Paul <lyude@xxxxxxxxxx>
Date: Thu, 5 Nov 2020 18:57:02 -0500
Subject: drm/edid: Fix uninitialized variable in drm_cvt_modes()
From: Lyude Paul <lyude@xxxxxxxxxx>
commit 991fcb77f490390bcad89fa67d95763c58cdc04c upstream.
Noticed this when trying to compile with -Wall on a kernel fork. We
potentially don't set width here, which causes the compiler to complain
about width potentially being uninitialized in drm_cvt_modes(). So, let's
fix that.
Changes since v1:
* Don't emit an error as this code isn't reachable, just mark it as such
Changes since v2:
* Remove now unused variable
Fixes: 3f649ab728cd ("treewide: Remove uninitialized_var() usage")
Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
Reviewed-by: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105235703.1328115-1-lyude@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2798,6 +2798,8 @@ static int drm_cvt_modes(struct drm_conn
case 0x0c:
width = height * 15 / 9;
break;
+ default:
+ unreachable();
}
for (j = 1; j < 5; j++) {
Patches currently in stable-queue which might be from lyude@xxxxxxxxxx are
queue-4.19/drm-edid-fix-uninitialized-variable-in-drm_cvt_modes.patch
