fix bug: ddr freq will not change any more when video quit abnormal

diff --git a/arch/arm/mach-rockchip/ddr_freq.c b/arch/arm/mach-rockchip/ddr_freq.c
index 6284eac31677a0fbe0b86161dd4727c9063c2fb8..f5f1d4ad74dfc697e67fd056c31bf4b23dbb22ab 100644 (file)
--- a/arch/arm/mach-rockchip/ddr_freq.c
+++ b/arch/arm/mach-rockchip/ddr_freq.c
@@ -344,6 +344,15 @@ void del_video_info(struct video_info *video_info)
        }
 }
 
+void clear_video_info(void)
+{
+       struct video_info *video_info, *next;
+
+       list_for_each_entry_safe(video_info, next, &ddr.video_info_list, node) {
+               del_video_info(video_info);
+       }
+}
+
 struct video_info *find_video_info(struct video_info *match_video_info)
 {
        struct video_info *video_info;
@@ -483,6 +492,8 @@ static ssize_t video_state_write(struct file *file, const char __user *buffer,
 static int video_state_release(struct inode *inode, struct file *file)
 {
        dprintk(DEBUG_VIDEO_STATE, "video_state release\n");
+       clear_video_info();
+       update_video_info();
        return 0;
 }