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author | Alex Shi <alex.shi@linaro.org> | 2018-03-26 02:31:53 +0000 |
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committer | Alex Shi <alex.shi@linaro.org> | 2018-03-26 02:31:53 +0000 |
commit | c5833b96030f9e06cf7c19dd4f99d3b55985eb8c (patch) | |
tree | 9587bb407acebb17bbd8a33d2d9c53ecbe1ab442 /drivers/gpu/drm/msm/msm_gem.c | |
parent | 78c39820dc30c73f5b69c3fe2269ad9b0840a61a (diff) | |
parent | b766b14a48de577e5060e4d8762f1e4a34229d2b (diff) |
Merge tag 'v4.4.124' into linux-linaro-lsk-v4.4lsk-v4.4-18.03
This is the 4.4.124 stable release
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index c76cc853b08a..644faf3ae93a 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -89,14 +89,17 @@ static struct page **get_pages(struct drm_gem_object *obj) return p; } + msm_obj->pages = p; + msm_obj->sgt = drm_prime_pages_to_sg(p, npages); if (IS_ERR(msm_obj->sgt)) { + void *ptr = ERR_CAST(msm_obj->sgt); + dev_err(dev->dev, "failed to allocate sgt\n"); - return ERR_CAST(msm_obj->sgt); + msm_obj->sgt = NULL; + return ptr; } - msm_obj->pages = p; - /* For non-cached buffers, ensure the new pages are clean * because display controller, GPU, etc. are not coherent: */ @@ -119,7 +122,10 @@ static void put_pages(struct drm_gem_object *obj) if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl, msm_obj->sgt->nents, DMA_BIDIRECTIONAL); - sg_free_table(msm_obj->sgt); + + if (msm_obj->sgt) + sg_free_table(msm_obj->sgt); + kfree(msm_obj->sgt); if (use_pages(obj)) |