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 <David@Fries.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/egl/fbdev/native_fbdev.c b/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
index e126888df90..b45ab5c4f2e 100644
--- a/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
+++ b/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
@@ -515,7 +515,16 @@ native_create_display(void *dpy, boolean use_sw)
 
    /* well, this makes fd 0 being ignored */
    if (!dpy) {
-      fd = open("/dev/fb0", O_RDWR);
+      const char *device_name="/dev/fb0";
+#ifdef O_CLOEXEC
+      fd = open(device_name, O_RDWR | O_CLOEXEC);
+      if (fd == -1 && errno == EINVAL)
+#endif
+      {
+         fd = open(device_name, O_RDWR);
+         if (fd != -1)
+            fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
+      }
    }
    else {
       fd = dup((int) pointer_to_intptr(dpy));