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Commit 339fa253 authored by guozhiming's avatar guozhiming Committed by hecaiqiang
Browse files

Add the NULL pointer condition check 

Change-Id: Idd47896f2b3ae81a0a2e0ecd8b3f4bc65e17ca1a
parent 9a664eb5

drivers/gpu/drm/msm/sde/sde_connector.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -557,6 +557,10 @@ static int _sde_connector_update_bl_scale(struct sde_connector *c_conn) 
	SDE_DEBUG("bl_scale = %u, bl_scale_ad = %u, bl_level = %u\n",

	SDE_DEBUG("bl_scale = %u, bl_scale_ad = %u, bl_level = %u\n",

		bl_config->bl_scale, bl_config->bl_scale_ad,

		bl_config->bl_scale, bl_config->bl_scale_ad,

		bl_config->bl_level);

		bl_config->bl_level);

		if(c_conn->ops.set_backlight==NULL){

			printk(KERN_ERR"c_conn->ops.set_backlight==NULL\n");

			return 0;

		}

	rc = c_conn->ops.set_backlight(&c_conn->base,

	rc = c_conn->ops.set_backlight(&c_conn->base,

			dsi_display, bl_config->bl_level);

			dsi_display, bl_config->bl_level);

	c_conn->unset_bl_level = 0;

	c_conn->unset_bl_level = 0;