egl/dri2: Close file descriptor on error.

v2: [Emil Velikov]
Rework the error path to a common goto, close only if we own the fd.
v3; [Emil Velikov]
Always close the fd (we either opened the device or dup'd) (Boyan, Ian)

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Boyan Ding <boyan.j.ding@gmail.com>

diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index eda50875e0254b4d29369a3beb03638b9ef9953b..7e9728046089f069a25db9c31f6f9cb88a61cad0 100644 (file)
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -623,26 +623,20 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
       dri2_dpy->own_device = 1;
       gbm = gbm_create_device(fd);
       if (gbm == NULL)
-         return EGL_FALSE;
+         goto cleanup;
    }
 
-   if (strcmp(gbm_device_get_backend_name(gbm), "drm") != 0) {
-      free(dri2_dpy);
-      return EGL_FALSE;
-   }
+   if (strcmp(gbm_device_get_backend_name(gbm), "drm") != 0)
+      goto cleanup;
 
    dri2_dpy->gbm_dri = gbm_dri_device(gbm);
-   if (dri2_dpy->gbm_dri->base.type != GBM_DRM_DRIVER_TYPE_DRI) {
-      free(dri2_dpy);
-      return EGL_FALSE;
-   }
+   if (dri2_dpy->gbm_dri->base.type != GBM_DRM_DRIVER_TYPE_DRI)
+      goto cleanup;
 
    if (fd < 0) {
       fd = fcntl(gbm_device_get_fd(gbm), F_DUPFD_CLOEXEC, 3);
-      if (fd < 0) {
-         free(dri2_dpy);
-         return EGL_FALSE;
-      }
+      if (fd < 0)
+         goto cleanup;
    }
 
    dri2_dpy->fd = fd;
@@ -727,4 +721,11 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
    dri2_dpy->vtbl = &dri2_drm_display_vtbl;
 
    return EGL_TRUE;
+
+cleanup:
+   if (fd >= 0)
+      close(fd);
+
+   free(dri2_dpy);
+   return EGL_FALSE;
 }