drm-misc-next fixes for v5.6:

- Fix build error in drm/edid.
 - Plug close-after-free race in vgem_gem_create.
 - Handle CONFIG_DMA_API_DEBUG_SG better in drm/msm.
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Merge tag 'drm-misc-next-fixes-2020-02-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-next fixes for v5.6:
- Fix build error in drm/edid.
- Plug close-after-free race in vgem_gem_create.
- Handle CONFIG_DMA_API_DEBUG_SG better in drm/msm.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/551b6183-a581-9d12-10a9-24cd929de425@linux.intel.com
This commit is contained in:
Dave Airlie 2020-02-14 12:57:47 +10:00
commit 7ebdc26a31
3 changed files with 15 additions and 4 deletions

View File

@ -3211,7 +3211,7 @@ static u8 *drm_find_cea_extension(const struct edid *edid)
return cea;
}
static const struct drm_display_mode *cea_mode_for_vic(u8 vic)
static __always_inline const struct drm_display_mode *cea_mode_for_vic(u8 vic)
{
BUILD_BUG_ON(1 + ARRAY_SIZE(edid_cea_modes_1) - 1 != 127);
BUILD_BUG_ON(193 + ARRAY_SIZE(edid_cea_modes_193) - 1 != 219);

View File

@ -441,6 +441,14 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
if (ret)
goto err_msm_uninit;
if (!dev->dma_parms) {
dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
GFP_KERNEL);
if (!dev->dma_parms)
return -ENOMEM;
}
dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
msm_gem_shrinker_init(ddev);
switch (get_mdp_ver(pdev)) {

View File

@ -196,9 +196,10 @@ static struct drm_gem_object *vgem_gem_create(struct drm_device *dev,
return ERR_CAST(obj);
ret = drm_gem_handle_create(file, &obj->base, handle);
drm_gem_object_put_unlocked(&obj->base);
if (ret)
if (ret) {
drm_gem_object_put_unlocked(&obj->base);
return ERR_PTR(ret);
}
return &obj->base;
}
@ -221,7 +222,9 @@ static int vgem_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
args->size = gem_object->size;
args->pitch = pitch;
DRM_DEBUG("Created object of size %lld\n", size);
drm_gem_object_put_unlocked(gem_object);
DRM_DEBUG("Created object of size %llu\n", args->size);
return 0;
}