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UPSTREAM: powerpc/svm: stop using io_tlb_start

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Use the local variable that is passed to swiotlb_init_with_tbl for
freeing the memory in the failure case to isolate the code a little
better from swiotlb internals.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
(cherry picked from commit 9906aa5bd6)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 190591509
Change-Id: Id42b806e3624a1fd2fbb4f3540cfb7eccc2845e8
This commit is contained in:
Christoph Hellwig
2021-03-01 08:44:23 +01:00
committed by Will Deacon
parent 83a0fecafb
commit 4351690b07
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/platforms/pseries/svm.c
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@@ -55,9 +55,9 @@ void __init svm_swiotlb_init(void)
if (vstart && !swiotlb_init_with_tbl(vstart, io_tlb_nslabs, false))
return;
if (io_tlb_start)
memblock_free_early(io_tlb_start,
PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
memblock_free_early(__pa(vstart),
PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
panic("SVM: Cannot allocate SWIOTLB buffer");
}