diff options
author | Amol Lad <amol@verismonetworks.com> | 2006-10-17 00:32:50 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-12-01 17:36:59 -0500 |
commit | 039d09a845209122c5193e650ab2d8b3c849ca7c (patch) | |
tree | af4574be60d590e166bf81057bbbbca2081ec4e9 /arch | |
parent | 7edab2f0876ff6a38e10a88c9aca20180aad307c (diff) |
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')
-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 25fe6685393..5c8c6ef1fc5 100644 --- a/arch/i386/kernel/pci-dma.c +++ b/arch/i386/kernel/pci-dma.c | |||
@@ -75,7 +75,7 @@ EXPORT_SYMBOL(dma_free_coherent); | |||
75 | int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, | 75 | int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, |
76 | dma_addr_t device_addr, size_t size, int flags) | 76 | dma_addr_t device_addr, size_t size, int flags) |
77 | { | 77 | { |
78 | void __iomem *mem_base; | 78 | void __iomem *mem_base = NULL; |
79 | int pages = size >> PAGE_SHIFT; | 79 | int pages = size >> PAGE_SHIFT; |
80 | int bitmap_size = (pages + 31)/32; | 80 | int bitmap_size = (pages + 31)/32; |
81 | 81 | ||
@@ -114,6 +114,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, | |||
114 | free1_out: | 114 | free1_out: |
115 | kfree(dev->dma_mem->bitmap); | 115 | kfree(dev->dma_mem->bitmap); |
116 | out: | 116 | out: |
117 | if (mem_base) | ||
118 | iounmap(mem_base); | ||
117 | return 0; | 119 | return 0; |
118 | } | 120 | } |
119 | EXPORT_SYMBOL(dma_declare_coherent_memory); | 121 | EXPORT_SYMBOL(dma_declare_coherent_memory); |