From 02ff4a8a59457d53fb77cbed37690837c8bf96f2 Mon Sep 17 00:00:00 2001
From: liushuai25 <liushuai25@xiaomi.com>
Date: Tue, 9 Nov 2021 11:24:36 +0800
Subject: [PATCH] fix: fb: set overlay to 0

when CONFIG_FB_OVERLAY=y, need set overlay=0,
otherwise the lcd driver doesn't know which
layer to get.

Signed-off-by: liushuai25 <liushuai25@xiaomi.com>
---
 examples/fb/fb_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/fb/fb_main.c b/examples/fb/fb_main.c
index eb5f614a0..5852dea9b 100644
--- a/examples/fb/fb_main.c
+++ b/examples/fb/fb_main.c
@@ -346,6 +346,9 @@ int main(int argc, FAR char *argv[])
       return EXIT_FAILURE;
     }
 
+  /* Get the first overlay information */
+
+  state.oinfo.overlay = 0;
   ret = ioctl(state.fd, FBIOGET_OVERLAYINFO,
                         (unsigned long)((uintptr_t)&state.oinfo));
   if (ret < 0)