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x86/pci-calgary: Fix iommu_free() comparison of unsigned expression >= 0
[pandora-kernel.git]
/
arch
/
x86
/
kernel
/
pci-calgary_64.c
diff --git
a/arch/x86/kernel/pci-calgary_64.c
b/arch/x86/kernel/pci-calgary_64.c
index
726494b
..
809b35e
100644
(file)
--- a/
arch/x86/kernel/pci-calgary_64.c
+++ b/
arch/x86/kernel/pci-calgary_64.c
@@
-295,7
+295,7
@@
static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
/* were we called with bad_dma_address? */
badend = DMA_ERROR_CODE + (EMERGENCY_PAGES * PAGE_SIZE);
/* were we called with bad_dma_address? */
badend = DMA_ERROR_CODE + (EMERGENCY_PAGES * PAGE_SIZE);
- if (unlikely(
(dma_addr >= DMA_ERROR_CODE) && (dma_addr < badend)
)) {
+ if (unlikely(
dma_addr < badend
)) {
WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
"address 0x%Lx\n", dma_addr);
return;
WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
"address 0x%Lx\n", dma_addr);
return;