6.6-stable review patch. If anyone has any objections, please let me know.
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From: Jani Nikula jani.nikula@intel.com
[ Upstream commit 171b711b26cce208bb628526b1b368aeec7b6fa4 ]
The .get_modes() hooks aren't supposed to return negative error codes. Return 0 for no modes, whatever the reason.
Cc: Adrien Grassein adrien.grassein@gmail.com Cc: stable@vger.kernel.org Acked-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/dcdddcbcb64b6f6cdc55022ee50c10... Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/lontium-lt8912b.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index f0ebd56b4736a..e5839c89a355a 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -430,23 +430,21 @@ lt8912_connector_mode_valid(struct drm_connector *connector, static int lt8912_connector_get_modes(struct drm_connector *connector) { const struct drm_edid *drm_edid; - int ret = -1; - int num = 0; struct lt8912 *lt = connector_to_lt8912(connector); u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24; + int ret, num;
drm_edid = drm_bridge_edid_read(lt->hdmi_port, connector); drm_edid_connector_update(connector, drm_edid); - if (drm_edid) { - num = drm_edid_connector_add_modes(connector); - } else { - return ret; - } + if (!drm_edid) + return 0; + + num = drm_edid_connector_add_modes(connector);
ret = drm_display_info_set_bus_formats(&connector->display_info, &bus_format, 1); - if (ret) - num = ret; + if (ret < 0) + num = 0;
drm_edid_free(drm_edid); return num;