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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-15 08:40:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-15 08:40:49 -0700 |
| commit | 6f02bfc404decf5b5046f1413ef941e1870912f7 (patch) | |
| tree | 8d3ef4ebba507a3d3f2e491d25dcd51c7241a401 /drivers/firewire | |
| parent | a0b3447fb1d8b32071f473c779a482277816867a (diff) | |
| parent | a01e836087881dd9d824417190994c9b2b0f1dbb (diff) | |
| download | lwn-6f02bfc404decf5b5046f1413ef941e1870912f7.tar.gz lwn-6f02bfc404decf5b5046f1413ef941e1870912f7.zip | |
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.c | 24 | ||||
| -rw-r--r-- | drivers/firewire/ohci.c | 9 |
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 { struct fw_cdev_event_phy_packet phy_packet; }; -static inline void __user *u64_to_uptr(__u64 value) +#ifdef CONFIG_COMPAT +static void __user *u64_to_uptr(u64 value) +{ + if (is_compat_task()) + return compat_ptr(value); + else + return (void __user *)(unsigned long)value; +} + +static u64 uptr_to_u64(void __user *ptr) +{ + if (is_compat_task()) + return ptr_to_compat(ptr); + else + return (u64)(unsigned long)ptr; +} +#else +static inline void __user *u64_to_uptr(u64 value) { return (void __user *)(unsigned long)value; } -static inline __u64 uptr_to_u64(void __user *ptr) +static inline u64 uptr_to_u64(void __user *ptr) { - return (__u64)(unsigned long)ptr; + return (u64)(unsigned long)ptr; } +#endif /* CONFIG_COMPAT */ static int fw_device_op_open(struct inode *inode, struct file *file) { 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, 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; } |