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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 <philippe.cornu@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180116222217.240939-1-seanpaul@chromium.org
This commit is contained in:
Sean Paul 2018-01-16 17:22:10 -05:00
parent 6ac6929028
commit 739ebf51a9
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c
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@ -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) static int wuxga_nt_panel_disable(struct drm_panel *panel)
{ {
struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel); struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);
int ret;
if (!wuxga_nt->enabled) if (!wuxga_nt->enabled)
return 0; return 0;
mipi_dsi_shutdown_peripheral(wuxga_nt->dsi); ret = mipi_dsi_shutdown_peripheral(wuxga_nt->dsi);
if (wuxga_nt->backlight) { if (wuxga_nt->backlight) {
wuxga_nt->backlight->props.power = FB_BLANK_POWERDOWN; 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; wuxga_nt->enabled = false;
return 0; return ret;
} }
static int wuxga_nt_panel_unprepare(struct drm_panel *panel) static int wuxga_nt_panel_unprepare(struct drm_panel *panel)