From 039d09a845209122c5193e650ab2d8b3c849ca7c Mon Sep 17 00:00:00 2001 From: Amol Lad Date: Tue, 17 Oct 2006 10:02:50 +0530 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- arch/i386/kernel/pci-dma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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); -- 2.20.1