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habanalabs: if map page fails don't try to unmap it

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The original code tried to unmap a page that was not mapped as part of
the map page error path.

Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Dafna Hirschfeld 2022-08-15 11:40:55 +03:00 committed by Oded Gabbay
parent 6173572f29
commit 46e49f434f
1 changed files with 2 additions and 0 deletions
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2
drivers/misc/habanalabs/common/mmu/mmu.c
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@ -403,6 +403,8 @@ int hl_mmu_map_contiguous(struct hl_ctx *ctx, u64 virt_addr,
dev_err(hdev->dev,
"Map failed for va 0x%llx to pa 0x%llx\n",
curr_va, curr_pa);
/* last mapping failed so don't try to unmap it - reduce off by page_size */
off -= page_size;
goto unmap;
}
}