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authorLinus Torvalds <torvalds@linux-foundation.org>2011-08-15 11:40:49 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-08-15 11:40:49 -0400
commit6f02bfc404decf5b5046f1413ef941e1870912f7 (patch)
tree8d3ef4ebba507a3d3f2e491d25dcd51c7241a401 /drivers/firewire
parenta0b3447fb1d8b32071f473c779a482277816867a (diff)
parenta01e836087881dd9d824417190994c9b2b0f1dbb (diff)
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: ohci: fix DMA unmapping in an error path firewire: cdev: fix 32 bit userland on 64 bit kernel compat corner cases
Diffstat (limited to 'drivers/firewire')
-rw-r--r--drivers/firewire/core-cdev.c24
-rw-r--r--drivers/firewire/ohci.c9
2 files changed, 28 insertions, 5 deletions
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index e6ad3bb6c1a6..4799393247c8 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -216,15 +216,33 @@ struct inbound_phy_packet_event {
216 struct fw_cdev_event_phy_packet phy_packet; 216 struct fw_cdev_event_phy_packet phy_packet;
217}; 217};
218 218
219static inline void __user *u64_to_uptr(__u64 value) 219#ifdef CONFIG_COMPAT
220static void __user *u64_to_uptr(u64 value)
221{
222 if (is_compat_task())
223 return compat_ptr(value);
224 else
225 return (void __user *)(unsigned long)value;
226}
227
228static u64 uptr_to_u64(void __user *ptr)
229{
230 if (is_compat_task())
231 return ptr_to_compat(ptr);
232 else
233 return (u64)(unsigned long)ptr;
234}
235#else
236static inline void __user *u64_to_uptr(u64 value)
220{ 237{
221 return (void __user *)(unsigned long)value; 238 return (void __user *)(unsigned long)value;
222} 239}
223 240
224static inline __u64 uptr_to_u64(void __user *ptr) 241static inline u64 uptr_to_u64(void __user *ptr)
225{ 242{
226 return (__u64)(unsigned long)ptr; 243 return (u64)(unsigned long)ptr;
227} 244}
245#endif /* CONFIG_COMPAT */
228 246
229static int fw_device_op_open(struct inode *inode, struct file *file) 247static int fw_device_op_open(struct inode *inode, struct file *file)
230{ 248{
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index bcf792fac442..57cd3a406edf 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -2179,8 +2179,13 @@ static int ohci_enable(struct fw_card *card,
2179 ohci_driver_name, ohci)) { 2179 ohci_driver_name, ohci)) {
2180 fw_error("Failed to allocate interrupt %d.\n", dev->irq); 2180 fw_error("Failed to allocate interrupt %d.\n", dev->irq);
2181 pci_disable_msi(dev); 2181 pci_disable_msi(dev);
2182 dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE, 2182
2183 ohci->config_rom, ohci->config_rom_bus); 2183 if (config_rom) {
2184 dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
2185 ohci->next_config_rom,
2186 ohci->next_config_rom_bus);
2187 ohci->next_config_rom = NULL;
2188 }
2184 return -EIO; 2189 return -EIO;
2185 } 2190 }
2186 2191