diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2007-12-03 15:42:10 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-01 14:34:53 -0800 |
| commit | 885e97478bf95b46a7cff40df49c2bb1a5503afd (patch) | |
| tree | ddb8bc5e8a7ace8971cf4a472bb9b3a100db7c73 /drivers/usb/core | |
| parent | badef819229d455493ba97253dd0e4097b995624 (diff) | |
| download | linux-885e97478bf95b46a7cff40df49c2bb1a5503afd.tar.bz2 | |
USB: repair USBDEVFS_CONNECT ioctl
For as long as I've known about it, the USBDEVFS_CONNECT ioctl hasn't
done what it's supposed to. The current code reprobes _all_ the
unbound USB interfaces; this patch (as1021) makes it reprobe only the
interface for which it was called.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/devio.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 1f4f6d02fe25..85ec65ada123 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1373,9 +1373,10 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl) /* let kernel drivers try to (re)bind to the interface */ case USBDEVFS_CONNECT: - usb_unlock_device(ps->dev); - retval = bus_rescan_devices(intf->dev.bus); - usb_lock_device(ps->dev); + if (!intf->dev.driver) + retval = device_attach(&intf->dev); + else + retval = -EBUSY; break; /* talk directly to the interface's driver */ |