diff options
| author | Andi Kleen <ak@linux.intel.com> | 2010-06-01 23:04:41 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 14:35:35 -0700 |
| commit | c532b29a6f6d31e84a7c88f995eebdc75ebd4248 (patch) | |
| tree | 5b8dbfae37f6c3c1530ee3651c9d28e00bd15f5e /drivers/usb/core | |
| parent | 6e12ea4658487ba9c746e95b31014cb89f63703b (diff) | |
| download | op-kernel-dev-c532b29a6f6d31e84a7c88f995eebdc75ebd4248.zip op-kernel-dev-c532b29a6f6d31e84a7c88f995eebdc75ebd4248.tar.gz | |
USB-BKL: Convert usb_driver ioctl to unlocked_ioctl
And audit all the users. None needed the BKL. That was easy
because there was only very few around.
Tested with allmodconfig build on x86-64
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
From: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/devio.c | 7 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 3 |
2 files changed, 4 insertions, 6 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index c2f62a3..f1aaff6 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1668,13 +1668,10 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl) default: if (intf->dev.driver) driver = to_usb_driver(intf->dev.driver); - if (driver == NULL || driver->ioctl == NULL) { + if (driver == NULL || driver->unlocked_ioctl == NULL) { retval = -ENOTTY; } else { - /* keep API that guarantees BKL */ - lock_kernel(); - retval = driver->ioctl(intf, ctl->ioctl_code, buf); - unlock_kernel(); + retval = driver->unlocked_ioctl(intf, ctl->ioctl_code, buf); if (retval == -ENOIOCTLCMD) retval = -ENOTTY; } diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 9cd77a2..d337ef8 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1294,6 +1294,7 @@ descriptor_error: return -ENODEV; } +/* No BKL needed */ static int hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data) { @@ -3465,7 +3466,7 @@ static struct usb_driver hub_driver = { .reset_resume = hub_reset_resume, .pre_reset = hub_pre_reset, .post_reset = hub_post_reset, - .ioctl = hub_ioctl, + .unlocked_ioctl = hub_ioctl, .id_table = hub_id_table, .supports_autosuspend = 1, }; |
