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sparc64: restore irq in error paths in iommu 

There are some error paths where we should restore IRQs but we don't.

Fixes: bb620c3d39 ("sparc: Make sparc64 use scalable lib/iommu-common.c functions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2016-11-26 00:15:37 +03:00 committed by David S. Miller
parent 601e6e3cc5
commit e241cfd3bd
1 changed files with 2 additions and 0 deletions
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2
arch/sparc/kernel/pci_sun4v.c
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@ -242,6 +242,7 @@ static void *dma_4v_alloc_coherent(struct device *dev, size_t size,
return ret;
iommu_map_fail:
local_irq_restore(flags);
iommu_tbl_range_free(tbl, *dma_addrp, npages, IOMMU_ERROR_CODE);
range_alloc_fail:
@ -414,6 +415,7 @@ bad:
return DMA_ERROR_CODE;
iommu_map_fail:
local_irq_restore(flags);
iommu_tbl_range_free(tbl, bus_addr, npages, IOMMU_ERROR_CODE);
return DMA_ERROR_CODE;
}