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msm: kgsl: Do not release dma and anon buffers if unmap fails

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If iommu unmap fails and leaves dma or anon buffers still mapped in the
iommu, do not free them.

Change-Id: Ice0e1a59c1ac0ee7a9d62d8899966b84fa63d5ca
Signed-off-by: Lynus Vaz <quic_lvaz@quicinc.com>
Signed-off-by: Deepak Kumar <quic_dkumar@quicinc.com>
This commit is contained in:
Lynus Vaz 2023-12-20 13:52:55 -08:00 • committed by Deepak Kumar
commit e7c4bb239b
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/msm/kgsl.c
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@ -344,6 +344,9 @@ static void kgsl_destroy_ion(struct kgsl_memdesc *memdesc)
struct kgsl_mem_entry, memdesc);
struct kgsl_dma_buf_meta *meta = entry->priv_data;
if (memdesc->priv & KGSL_MEMDESC_MAPPED)
return;
if (meta != NULL) {
remove_dmabuf_list(meta);
dma_buf_unmap_attachment(meta->attach, meta->table,
@ -367,6 +370,9 @@ static void kgsl_destroy_anon(struct kgsl_memdesc *memdesc)
struct scatterlist *sg;
struct page *page;
if (memdesc->priv & KGSL_MEMDESC_MAPPED)
return;
for_each_sg(memdesc->sgt->sgl, sg, memdesc->sgt->nents, i) {
page = sg_page(sg);
for (j = 0; j < (sg->length >> PAGE_SHIFT); j++) {