diff options
Diffstat (limited to 'drivers/firewire/fw-device-cdev.c')
| -rw-r--r-- | drivers/firewire/fw-device-cdev.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/firewire/fw-device-cdev.c b/drivers/firewire/fw-device-cdev.c index b1b7edb0d2a..f9f26886141 100644 --- a/drivers/firewire/fw-device-cdev.c +++ b/drivers/firewire/fw-device-cdev.c @@ -274,10 +274,11 @@ static int ioctl_get_info(struct client *client, void __user *arg) if (get_info.rom != 0) { void __user *uptr = u64_to_uptr(get_info.rom); - size_t length = min(get_info.rom_length, - client->device->config_rom_length * 4); + size_t want = get_info.rom_length; + size_t have = client->device->config_rom_length * 4; - if (copy_to_user(uptr, client->device->config_rom, length)) + if (copy_to_user(uptr, client->device->config_rom, + min(want, have))) return -EFAULT; } get_info.rom_length = client->device->config_rom_length * 4; |