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Commit d82965c1 authored by David S. Miller's avatar David S. Miller Committed by David S. Miller
Browse files

[SPARC64]: Handle zero-length map requests in pci_sun4v.c 



By simply changing the do-while loop into a plain
while loop.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent abf3b7bd

arch/sparc64/kernel/pci_sun4v.c

+2 −2
Original line number Diff line number Diff line
@@ -57,7 +57,7 @@ static long pci_iommu_batch_flush(struct pci_iommu_batch *p) 
	u64 *pglist = p->pglist;

	unsigned long npages = p->npages;



	do {

	while (npages != 0) {

		long num;



		num = pci_sun4v_iommu_map(devhandle, HV_PCI_TSBID(0, entry),
@@ -75,7 +75,7 @@ static long pci_iommu_batch_flush(struct pci_iommu_batch *p) 
		entry += num;

		npages -= num;

		pglist += num;

	} while (npages != 0);

	}



	p->entry = entry;

	p->npages = 0;