drm: Use size_t for blob property sizes

size_t is the standard type when dealing with sizes of all kinds. Use it
consistently when instantiating DRM blob properties.
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/drm_crtc.c

@@ -3938,7 +3938,8 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	return ret;
 }
 
-static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
+static struct drm_property_blob *
+drm_property_create_blob(struct drm_device *dev, size_t length,
 			 void *data)
 {
 	struct drm_property_blob *blob;
@@ -4023,8 +4024,8 @@ int drm_mode_connector_set_path_property(struct drm_connector *connector,
 					 char *path)
 {
 	struct drm_device *dev = connector->dev;
-	int ret, size;
-	size = strlen(path) + 1;
+	size_t size = strlen(path) + 1;
+	int ret;
 
 	connector->path_blob_ptr = drm_property_create_blob(connector->dev,
 							    size, path);
@@ -4053,7 +4054,8 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
 					    struct edid *edid)
 {
 	struct drm_device *dev = connector->dev;
-	int ret, size;
+	size_t size;
+	int ret;
 
 	/* ignore requests to set edid when overridden */
 	if (connector->override_edid)

include/drm/drm_crtc.h

@@ -196,7 +196,7 @@ struct drm_framebuffer {
 struct drm_property_blob {
 	struct drm_mode_object base;
 	struct list_head head;
-	unsigned int length;
+	size_t length;
 	unsigned char data[];
 };