5.4-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 13d5b040363c7ec0ac29c2de9cf661a24a8aa531 ]
The .get_modes() hooks aren't supposed to return negative error codes. Return 0 for no modes, whatever the reason.
Cc: Inki Dae inki.dae@samsung.com Cc: Seung-Woo Kim sw0312.kim@samsung.com Cc: Kyungmin Park kyungmin.park@samsung.com Cc: stable@vger.kernel.org Acked-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/d8665f620d9c252aa7d5a4811ff6b1... Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 4 ++-- drivers/gpu/drm/exynos/exynos_hdmi.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index d882a22dfd6e6..46fc472be3068 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -308,14 +308,14 @@ static int vidi_get_modes(struct drm_connector *connector) */ if (!ctx->raw_edid) { DRM_DEV_DEBUG_KMS(ctx->dev, "raw_edid is null.\n"); - return -EFAULT; + return 0; }
edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); if (!edid) { DRM_DEV_DEBUG_KMS(ctx->dev, "failed to allocate edid\n"); - return -ENOMEM; + return 0; }
drm_connector_update_edid_property(connector, edid); diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 93b2af4936d0e..0e2e1dfcd9ce5 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -876,11 +876,11 @@ static int hdmi_get_modes(struct drm_connector *connector) int ret;
if (!hdata->ddc_adpt) - return -ENODEV; + return 0;
edid = drm_get_edid(connector, hdata->ddc_adpt); if (!edid) - return -ENODEV; + return 0;
hdata->dvi_mode = !drm_detect_hdmi_monitor(edid); DRM_DEV_DEBUG_KMS(hdata->dev, "%s : width[%d] x height[%d]\n",