From 739ebf51a92c67ce7e26e348d8effb9a55eb96c3 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Tue, 16 Jan 2018 17:22:10 -0500 Subject: [PATCH] drm/panel: panasonic-vvx10f034n00: Fix wuxga_nt_panel_disable() return value Return value for mipi_dsi_shutdown_peripheral() is unchecked. Check it and return any errors if they come up. Even if mipi_dsi_shutdown_peripheral() fails, continue attempting to disable. Cc: Philippe Cornu Reviewed-by: Philippe Cornu Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180116222217.240939-1-seanpaul@chromium.org --- drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c index 7f915f706fa6..91dc5a6b14f9 100644 --- a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c +++ b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c @@ -72,11 +72,12 @@ static int wuxga_nt_panel_on(struct wuxga_nt_panel *wuxga_nt) static int wuxga_nt_panel_disable(struct drm_panel *panel) { struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel); + int ret; if (!wuxga_nt->enabled) return 0; - mipi_dsi_shutdown_peripheral(wuxga_nt->dsi); + ret = mipi_dsi_shutdown_peripheral(wuxga_nt->dsi); if (wuxga_nt->backlight) { wuxga_nt->backlight->props.power = FB_BLANK_POWERDOWN; @@ -86,7 +87,7 @@ static int wuxga_nt_panel_disable(struct drm_panel *panel) wuxga_nt->enabled = false; - return 0; + return ret; } static int wuxga_nt_panel_unprepare(struct drm_panel *panel)