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authorStefan Richter <stefanr@s5r6.in-berlin.de>2011-08-11 20:40:42 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2011-08-12 15:30:08 +0200
commita01e836087881dd9d824417190994c9b2b0f1dbb (patch)
treedba049b83137d4cda2fdc53ed06d83897a74dc4f /drivers
parent9c1176b6a28850703ea6e3a0f0c703f6d6c61cd3 (diff)
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firewire: ohci: fix DMA unmapping in an error path
If request_irq failed, we would pass wrong arguments to dma_free_coherent. https://bugzilla.redhat.com/show_bug.cgi?id=728185 Reported-by: Mads Kiilerich Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/firewire/ohci.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 4f6d72f87f6..ded0c9bf96f 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -2178,8 +2178,13 @@ static int ohci_enable(struct fw_card *card,
ohci_driver_name, ohci)) {
fw_error("Failed to allocate interrupt %d.\n", dev->irq);
pci_disable_msi(dev);
- dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
- ohci->config_rom, ohci->config_rom_bus);
+
+ if (config_rom) {
+ dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+ ohci->next_config_rom,
+ ohci->next_config_rom_bus);
+ ohci->next_config_rom = NULL;
+ }
return -EIO;
}