From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: [PATCH libdrm 1/2] Return an -ENODEV from drmGetDevice() when no device was found. Date: Fri, 21 Oct 2016 10:12:39 -0700 Message-ID: <20161021171240.6972-1-eric@anholt.net> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, Rob Herring , Eric Anholt List-Id: dri-devel@lists.freedesktop.org From: Rob Herring Fixes crashes in Mesa on platform device, which expected *device to have a device when 0 was returned. (code from a paste by Rob, commit message by anholt) Signed-off-by: Eric Anholt --- xf86drm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xf86drm.c b/xf86drm.c index 9cfca49ddfda..9b52889e4cef 100644 --- a/xf86drm.c +++ b/xf86drm.c @@ -3181,6 +3181,8 @@ int drmGetDevice(int fd, drmDevicePtr *device) closedir(sysdir); free(local_devices); + if (*device == NULL) + return -ENODEV; return 0; free_devices: -- 2.9.3