minui: Save errno before calling close().
Otherwise errno would be overwritten when calling close(2).
Test: mmma bootable/recovery
Change-Id: I661e46b1b040f550639a728aa2683e91621b4307
diff --git a/minui/graphics_adf.cpp b/minui/graphics_adf.cpp
index 17f30d1..9ab0b06 100644
--- a/minui/graphics_adf.cpp
+++ b/minui/graphics_adf.cpp
@@ -67,8 +67,9 @@
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;