From f04592ba230139d5132ebd8bb8610f6a98836882 Mon Sep 17 00:00:00 2001
From: Tao Bao <tbao@google.com>
Date: Thu, 9 Feb 2017 12:59:19 -0800
Subject: minui: Save errno before calling close().

Otherwise errno would be overwritten when calling close(2).

Test: mmma bootable/recovery
Change-Id: I661e46b1b040f550639a728aa2683e91621b4307
---
 minui/graphics_adf.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'minui')

diff --git a/minui/graphics_adf.cpp b/minui/graphics_adf.cpp
index 17f30d1d4..9ab0b06bf 100644
--- a/minui/graphics_adf.cpp
+++ b/minui/graphics_adf.cpp
@@ -67,8 +67,9 @@ static int adf_surface_init(adf_pdata* pdata, drm_mode_modeinfo* mode, adf_surfa
   surf->base.data = static_cast<uint8_t*>(mmap(nullptr, surf->pitch * surf->base.height, PROT_WRITE,
                                                MAP_SHARED, surf->fd, surf->offset));
   if (surf->base.data == MAP_FAILED) {
+    int saved_errno = errno;
     close(surf->fd);
-    return -errno;
+    return -saved_errno;
   }
 
   return 0;
-- 
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