From: Michael Benedict <michaelbt@live.com>
Date: Fri, 30 Aug 2019 14:24:16 +0000 (+1000)
Subject: source: N950F DSH1
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e843fcf8661e8ab7f0c8636825f22eafc9d103c7;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

source: N950F DSH1

Signed-off-by: Michael Benedict <michaelbt@live.com>
---

diff --git a/drivers/staging/android/freecess.c b/drivers/staging/android/freecess.c
index e8d9fd442fd5..af97bf7ccb72 100644
--- a/drivers/staging/android/freecess.c
+++ b/drivers/staging/android/freecess.c
@@ -281,11 +281,19 @@ static void recv_handler(struct sk_buff *skb)
 	struct kfreecess_msg_data *payload = NULL;
 	struct nlmsghdr *nlh = NULL;
 	unsigned int msglen  = 0;
+	uid_t uid = 0;
 
 	if (!skb) {
 		pr_err("recv_handler %s: skb is	NULL!\n", __func__);
 		return;
 	}
+	
+	uid = (*NETLINK_CREDS(skb)).uid.val;
+	//only allow system user to communicate with Freecess kernel part.
+	if (uid != 1000) {
+		pr_err("freecess--uid: %d, permission denied\n", uid);
+		return;
+	}
 
 	if (skb->len >= NLMSG_SPACE(0)) {
 		nlh = nlmsg_hdr(skb);
@@ -302,10 +310,15 @@ static void recv_handler(struct sk_buff *skb)
 				pr_err("USER_HOOK_CALLBACK %s: dst_portid is %d not kernel!\n", __func__, payload->dst_portid);
 				return;
 			}
+			
+			if (!check_mod_type(payload->mod)) {
+				pr_err("USER_HOOK_CALLBACK %s: mod %d is not valid!\n", __func__, payload->mod);
+				return;
+			}
 
-			atomic_set(&bind_port[payload->mod], payload->src_portid);
 			switch (payload->type) {
 			case LOOPBACK_MSG:
+				atomic_set(&bind_port[payload->mod], payload->src_portid);
 				dump_kfreecess_msg(payload);
 				mod_sendmsg(LOOPBACK_MSG, payload->mod, NULL);
 				break;
diff --git a/drivers/video/fbdev/exynos/dpu/displayport_edid.c b/drivers/video/fbdev/exynos/dpu/displayport_edid.c
index f8fe13c4967c..1a9442505817 100644
--- a/drivers/video/fbdev/exynos/dpu/displayport_edid.c
+++ b/drivers/video/fbdev/exynos/dpu/displayport_edid.c
@@ -68,11 +68,11 @@ struct displayport_supported_preset displayport_supported_presets[] = {
 	{V4L2_DV_BT_CEA_4096X2160P60,	4096, 2160, 60, FB_VMODE_NONINTERLACED, 102, "4096x2160p@60"},
 };
 
-videoformat ud_mode_h14b_vsdb[] = {
-	v3840x2160p_30Hz,
-	v3840x2160p_25Hz,
-	v3840x2160p_24Hz,
-	v4096x2160p_24Hz
+struct displayport_supported_preset ud_mode_h14b_vsdb[] = {
+	{V4L2_DV_BT_CEA_3840X2160P30,	    3840, 2160, 30, FB_VMODE_NONINTERLACED,  95, "3840x2160p@30"},
+	{V4L2_DV_BT_CEA_3840X2160P25,	    3840, 2160, 25, FB_VMODE_NONINTERLACED,  94, "3840x2160p@25"},
+	{V4L2_DV_BT_CEA_3840X2160P24,	    3840, 2160, 24, FB_VMODE_NONINTERLACED,  93, "3840x2160p@24"},
+	{V4L2_DV_BT_CEA_4096X2160P24,	    4096, 2160, 24, FB_VMODE_NONINTERLACED,  98, "4096x2160p@24"}
 };
 
 const int displayport_pre_cnt = ARRAY_SIZE(displayport_supported_presets);
@@ -426,10 +426,8 @@ static int edid_parse_audio_video_db(unsigned char *edid, struct fb_audio *sad)
 	return 0;
 }
 
-int static edid_dv_timing_to_fb_video(videoformat video, struct fb_videomode *fb)
+int static edid_dv_timing_to_fb_video(struct displayport_supported_preset pre, struct fb_videomode *fb)
 {
-	struct displayport_supported_preset pre = displayport_supported_presets[video];
-
 	fb->name = pre.name;
 	fb->refresh = pre.refresh;
 	fb->xres = pre.dv_timings.bt.width;