Set close on exec flag FD_CLOEXEC

Set the close on exec flag when opening dri character devices, so they
will be closed and free any resouces allocated in exec.

Signed-off-by: David Fries <[email protected]>
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/egl/wayland/native_drm.c b/src/gallium/state_trackers/egl/wayland/native_drm.c
index 8daf7830dd4..e3bd628675e 100644
--- a/src/gallium/state_trackers/egl/wayland/native_drm.c
+++ b/src/gallium/state_trackers/egl/wayland/native_drm.c
@@ -133,7 +133,15 @@ drm_handle_device(void *data, struct wl_drm *drm, const char *device)
    if (!drmdpy->device_name)
       return;
 
-   drmdpy->fd = open(drmdpy->device_name, O_RDWR);
+#ifdef O_CLOEXEC
+   drmdpy->fd = open(drmdpy->device_name, O_RDWR | O_CLOEXEC);
+   if (drmdpy->fd == -1 && errno == EINVAL)
+#endif
+   {
+      drmdpy->fd = open(drmdpy->device_name, O_RDWR);
+      if (drmdpy->fd != -1)
+         fcntl(drmdpy->fd, F_SETFD, fcntl(drmdpy->fd, F_GETFD) | FD_CLOEXEC);
+   }
    if (drmdpy->fd == -1) {
       _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
               drmdpy->device_name, strerror(errno));