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| author | Amol Lad <amol@verismonetworks.com> | 2006-10-17 06:32:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-12-01 23:36:59 +0100 |
| commit | 039d09a845209122c5193e650ab2d8b3c849ca7c (patch) | |
| tree | af4574be60d590e166bf81057bbbbca2081ec4e9 /arch/i386/kernel/pci-dma.c | |
| parent | pci/i386: style cleanups (diff) | |
| download | linux-039d09a845209122c5193e650ab2d8b3c849ca7c.tar.xz linux-039d09a845209122c5193e650ab2d8b3c849ca7c.zip | |
PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap
ioremap must be balanced by an iounmap and failing to do so can result
in a memory leak.
Tested (compilation only):
- using allmodconfig
- making sure the files are compiling without any warning/error due to
new changes
Signed-off-by: Amol Lad <amol@verismonetworks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/i386/kernel/pci-dma.c')
| -rw-r--r-- | arch/i386/kernel/pci-dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c index 25fe66853934..5c8c6ef1fc5e 100644 --- a/arch/i386/kernel/pci-dma.c +++ b/arch/i386/kernel/pci-dma.c @@ -75,7 +75,7 @@ EXPORT_SYMBOL(dma_free_coherent); int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, dma_addr_t device_addr, size_t size, int flags) { - void __iomem *mem_base; + void __iomem *mem_base = NULL; int pages = size >> PAGE_SHIFT; int bitmap_size = (pages + 31)/32; @@ -114,6 +114,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, free1_out: kfree(dev->dma_mem->bitmap); out: + if (mem_base) + iounmap(mem_base); return 0; } EXPORT_SYMBOL(dma_declare_coherent_memory); |