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++) {