From c59d3aa4b9bc58994e199052171a8119aaa8195c Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Fri, 23 Nov 2018 12:55:38 +0000 Subject: [PATCH] egl/wayland: bail out when drmGetMagic fails MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Currently as the function fails, we pass uninitialized data to the authentication function. Stop doing that and print an warning when the function fails. v2: Plug memory leak in error path (Eric) Cc: mesa-stable@lists.freedesktop.org Signed-off-by: Emil Velikov Reviewed-by: Tapani Pälli (v1) Reviewed-by: Eric Engestrom --- src/egl/drivers/dri2/platform_wayland.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c index 8122c811288..b05f5363163 100644 --- a/src/egl/drivers/dri2/platform_wayland.c +++ b/src/egl/drivers/dri2/platform_wayland.c @@ -1133,7 +1133,14 @@ drm_handle_device(void *data, struct wl_drm *drm, const char *device) if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER) { dri2_dpy->authenticated = true; } else { - drmGetMagic(dri2_dpy->fd, &magic); + if (drmGetMagic(dri2_dpy->fd, &magic)) { + close(dri2_dpy->fd); + dri2_dpy->fd = -1; + free(dri2_dpy->device_name); + dri2_dpy->device_name = NULL: + _eglLog(_EGL_WARNING, "wayland-egl: drmGetMagic failed"); + return; + } wl_drm_authenticate(dri2_dpy->wl_drm, magic); } } -- 2.30.2