Use O_CLOEXEC at a few places.
Found these FDs unintentionally propagated into forked processes (e.g.
updater) during my local debugging. Use O_CLOEXEC to avoid that.
Test: Dump open FDs in updater process.
Test: Sideload a package on taimen (which uses framebuffer).
Test: Run graphics test on taimen.
Change-Id: I1fb65dd4a103c47d28b15973def9e9359c251ca3
diff --git a/minui/graphics_drm.cpp b/minui/graphics_drm.cpp
index 765e262..7b2eed1 100644
--- a/minui/graphics_drm.cpp
+++ b/minui/graphics_drm.cpp
@@ -285,7 +285,7 @@
/* Consider DRM devices in order. */
for (int i = 0; i < DRM_MAX_MINOR; i++) {
auto dev_name = android::base::StringPrintf(DRM_DEV_NAME, DRM_DIR_NAME, i);
- android::base::unique_fd fd(open(dev_name.c_str(), O_RDWR));
+ android::base::unique_fd fd(open(dev_name.c_str(), O_RDWR | O_CLOEXEC));
if (fd == -1) continue;
/* We need dumb buffers. */