From 583bbf46133c726bae277e8f4e32bfba2a528c7f Mon Sep 17 00:00:00 2001 From: Steven Price Date: Thu, 27 Jun 2019 16:53:18 +0100 Subject: [PATCH] drm/panfrost: Use drm_gem_map_offset() panfrost_ioctl_mmap_bo() contains a reimplementation of drm_gem_map_offset() but with a bug - it allows mapping imported objects (without going through the exporter). Fix this by switching to use the newly renamed drm_gem_map_offset() function instead which has the bonus of simplifying the code. Signed-off-by: Steven Price Reviewed-by: Alyssa Rosenzweig Signed-off-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20190627155318.38053-3-steven.price@arm.com --- drivers/gpu/drm/panfrost/panfrost_drv.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 07b01eb3d136..eaa1f947fa82 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -259,26 +259,14 @@ static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_panfrost_mmap_bo *args = data; - struct drm_gem_object *gem_obj; - int ret; if (args->flags != 0) { DRM_INFO("unknown mmap_bo flags: %d\n", args->flags); return -EINVAL; } - gem_obj = drm_gem_object_lookup(file_priv, args->handle); - if (!gem_obj) { - DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle); - return -ENOENT; - } - - ret = drm_gem_create_mmap_offset(gem_obj); - if (ret == 0) - args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); - drm_gem_object_put_unlocked(gem_obj); - - return ret; + return drm_gem_map_offset(file_priv, dev, args->handle, + &args->offset); } static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data, -- 2.30.2