samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: fix kw issues in sde and dp driver

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This change addresses out of range and null checks in
sde and dp driver.

Change-Id: I142196d7394f0bf0abab1bfa89abfd784a5521c8
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
This commit is contained in:
Narendra Muppalla
2020-04-21 15:13:42 -07:00
parent a60fc941c5
commit d07ef2efe0
3 changed files with 22 additions and 10 deletions
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18
msm/msm_gem.c
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@@ -114,8 +114,14 @@ static struct page **get_pages(struct drm_gem_object *obj)
*/
if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) {
aspace_dev = msm_gem_get_aspace_device(msm_obj->aspace);
dma_map_sg(aspace_dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
if (aspace_dev)
dma_map_sg(aspace_dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents,
DMA_BIDIRECTIONAL);
else
dev_err(dev->dev,
"failed to get aspace_device\n");
}
}
@@ -190,8 +196,12 @@ void msm_gem_sync(struct drm_gem_object *obj)
* scatter/gather mapping for the CPU and device.
*/
aspace_dev = msm_gem_get_aspace_device(msm_obj->aspace);
dma_sync_sg_for_device(aspace_dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
if (aspace_dev)
dma_sync_sg_for_device(aspace_dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
else
dev_err(obj->dev->dev,
"failed to get aspace_device\n");
}