From: Kamil Dudka Date: Wed, 15 Jul 2015 15:18:15 +0000 (+0200) Subject: drm/nouveau: hold mutex when calling nouveau_abi16_fini() X-Git-Tag: v4.1.5~5 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=53f092abcba808c59ae9d4744175e9c25287a81c;p=users%2Fjedix%2Flinux-maple.git drm/nouveau: hold mutex when calling nouveau_abi16_fini() commit ac8c79304280da6ef05c348a9da03ab04898b994 upstream. This was the only access to cli->abi16 without holding the mutex. Signed-off-by: Kamil Dudka Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 89049335b7383..cd6dae08175e4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -863,8 +863,10 @@ nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) pm_runtime_get_sync(dev->dev); + mutex_lock(&cli->mutex); if (cli->abi16) nouveau_abi16_fini(cli->abi16); + mutex_unlock(&cli->mutex); mutex_lock(&drm->client.mutex); list_del(&cli->head);