[Mesa-dev] [PATCH 4/4] egl: Use the loader_open_device() helper to do open with CLOEXEC

[Derek Foreman]

We've moved the open with CLOEXEC idiom into a helper function, so
call it instead of duplicating the code.

This also replaces a couple of opens that didn't properly do CLOEXEC.

Signed-off-by: Derek Foreman <derekf at osg.samsung.com>
---
 src/egl/drivers/dri2/platform_drm.c         |  4 ++--
 src/egl/drivers/dri2/platform_surfaceless.c | 11 +----------
 src/egl/drivers/dri2/platform_wayland.c     | 11 +----------
 src/egl/drivers/dri2/platform_x11.c         | 12 ++----------
 4 files changed, 6 insertions(+), 32 deletions(-)

diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index c97c54f..a62da41 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -611,9 +611,9 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
       char buf[64];
       int n = snprintf(buf, sizeof(buf), DRM_DEV_NAME, DRM_DIR_NAME, 0);
       if (n != -1 && n < sizeof(buf))
-         fd = open(buf, O_RDWR);
+         fd = loader_open_device(buf);
       if (fd < 0)
-         fd = open("/dev/dri/card0", O_RDWR);
+         fd = loader_open_device("/dev/dri/card0");
       dri2_dpy->own_device = 1;
       gbm = gbm_create_device(fd);
       if (gbm == NULL)
diff --git a/src/egl/drivers/dri2/platform_surfaceless.c b/src/egl/drivers/dri2/platform_surfaceless.c
index 30cea36..48f15df 100644
--- a/src/egl/drivers/dri2/platform_surfaceless.c
+++ b/src/egl/drivers/dri2/platform_surfaceless.c
@@ -97,16 +97,7 @@ dri2_initialize_surfaceless(_EGLDriver *drv, _EGLDisplay *disp)
       if (asprintf(&card_path, DRM_RENDER_DEV_NAME, DRM_DIR_NAME, base + i) < 0)
          continue;
 
-#ifdef O_CLOEXEC
-      dri2_dpy->fd = open(card_path, O_RDWR | O_CLOEXEC);
-      if (dri2_dpy->fd < 0 && errno == EINVAL)
-#endif
-      {
-         dri2_dpy->fd = open(card_path, O_RDWR);
-         if (dri2_dpy->fd >= 0)
-            fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
-               FD_CLOEXEC);
-      }
+      dri2_dpy->fd = loader_open_device(card_path);
 
       free(card_path);
       if (dri2_dpy->fd < 0)
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index ea2f9f2..1c98552 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -891,16 +891,7 @@ drm_handle_device(void *data, struct wl_drm *drm, const char *device)
    if (!dri2_dpy->device_name)
       return;
 
-#ifdef O_CLOEXEC
-   dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
-   if (dri2_dpy->fd == -1 && errno == EINVAL)
-#endif
-   {
-      dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
-      if (dri2_dpy->fd != -1)
-         fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
-            FD_CLOEXEC);
-   }
+   dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
    if (dri2_dpy->fd == -1) {
       _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)",
 	      dri2_dpy->device_name, strerror(errno));
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index e0d0fdc..e010800 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -43,6 +43,7 @@
 
 #include "egl_dri2.h"
 #include "egl_dri2_fallbacks.h"
+#include "loader.h"
 
 static EGLBoolean
 dri2_x11_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
@@ -1230,16 +1231,7 @@ dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
    if (!dri2_load_driver(disp))
       goto cleanup_conn;
 
-#ifdef O_CLOEXEC
-   dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR | O_CLOEXEC);
-   if (dri2_dpy->fd == -1 && errno == EINVAL)
-#endif
-   {
-      dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
-      if (dri2_dpy->fd != -1)
-         fcntl(dri2_dpy->fd, F_SETFD, fcntl(dri2_dpy->fd, F_GETFD) |
-            FD_CLOEXEC);
-   }
+   dri2_dpy->fd = loader_open_device(dri2_dpy->device_name);
    if (dri2_dpy->fd == -1) {
       _eglLog(_EGL_WARNING,
 	      "DRI2: could not open %s (%s)", dri2_dpy->device_name,
-- 
2.1.4