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authorDavid S. Miller <davem@davemloft.net>2006-02-20 01:42:51 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:13:45 -0800
commitd82965c16781a7c5b8508c3784ba10bbeef34ff4 (patch)
treefb2510731dc418c3271edfc50fec75c80a035ae6 /arch/sparc64/kernel/pci_sun4v.c
parentabf3b7bd89c11492b145e338913c0b511084cff7 (diff)
[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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/pci_sun4v.c')
-rw-r--r--arch/sparc64/kernel/pci_sun4v.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index d9ef0c7580ea..a9c44c0ae0a7 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -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;