drm_property_create_range can be failed in memory pressure
Therefore, check return value and handle an error
Signed-off-by: Insu Yun <wuninsu at gmail.com>
---
drivers/gpu/drm/drm_crtc.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 33d877c..5fb6583 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1525,6 +1525,9 @@ int drm_mode_create_tv_properties(struct drm_device *dev,
"select subconnector",
drm_tv_select_enum_list,
ARRAY_SIZE(drm_tv_select_enum_list));
+ if (!tv_selector)
+ goto nomem;
+
dev->mode_config.tv_select_subconnector_property = tv_selector;
tv_subconnector =
@@ -1532,6 +1535,8 @@ int drm_mode_create_tv_properties(struct drm_device *dev,
"subconnector",
drm_tv_subconnector_enum_list,
ARRAY_SIZE(drm_tv_subconnector_enum_list));
+ if (!tv_subconnector)
+ goto nomem;
dev->mode_config.tv_subconnector_property = tv_subconnector;
/*
@@ -1539,42 +1544,67 @@ int drm_mode_create_tv_properties(struct drm_device
*dev,
*/
dev->mode_config.tv_left_margin_property =
drm_property_create_range(dev, 0, "left margin", 0, 100);
+ if (!dev->mode_config.tv_left_margin_property)
+ goto nomem;
dev->mode_config.tv_right_margin_property =
drm_property_create_range(dev, 0, "right margin", 0, 100);
+ if (!dev->mode_config.tv_right_margin_property)
+ goto nomem;
dev->mode_config.tv_top_margin_property =
drm_property_create_range(dev, 0, "top margin", 0, 100);
+ if (!dev->mode_config.tv_top_margin_property)
+ goto nomem;
dev->mode_config.tv_bottom_margin_property =
drm_property_create_range(dev, 0, "bottom margin", 0, 100);
+ if (!dev->mode_config.tv_bottom_margin_property)
+ goto nomem;
dev->mode_config.tv_mode_property =
drm_property_create(dev, DRM_MODE_PROP_ENUM,
"mode", num_modes);
+ if (!dev->mode_config.tv_mode_property)
+ goto nomem;
+
for (i = 0; i < num_modes; i++)
drm_property_add_enum(dev->mode_config.tv_mode_property, i,
i, modes[i]);
dev->mode_config.tv_brightness_property =
drm_property_create_range(dev, 0, "brightness", 0, 100);
+ if (!dev->mode_config.tv_brightness_property)
+ goto nomem;
dev->mode_config.tv_contrast_property =
drm_property_create_range(dev, 0, "contrast", 0, 100);
+ if (!dev->mode_config.tv_contrast_property)
+ goto nomem;
dev->mode_config.tv_flicker_reduction_property =
drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
+ if (!dev->mode_config.tv_flicker_reduction_property)
+ goto nomem;
dev->mode_config.tv_overscan_property =
drm_property_create_range(dev, 0, "overscan", 0, 100);
+ if (!dev->mode_config.tv_overscan_property)
+ goto nomem;
dev->mode_config.tv_saturation_property =
drm_property_create_range(dev, 0, "saturation", 0, 100);
+ if (!dev->mode_config.tv_saturation_property)
+ goto nomem;
dev->mode_config.tv_hue_property =
drm_property_create_range(dev, 0, "hue", 0, 100);
+ if (!dev->mode_config.tv_hue_property)
+ goto nomem;
return 0;
+nomem:
+ return -ENOMEM;
}
EXPORT_SYMBOL(drm_mode_create_tv_properties);
--
1.9.1
