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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 09:25:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 09:25:16 -0700 |
| commit | be90a49ca22a95f184d9f32d35b5247b44032849 (patch) | |
| tree | d3c2edc18c003c384366f57901616ac29c80bc27 /drivers/usb/misc/ldusb.c | |
| parent | 1f0918d03ff4b5c94540c71ce889672abdbc2f4a (diff) | |
| parent | a87371b477774b290c27bc5cb7f4ccc5379574a9 (diff) | |
| download | talos-op-linux-be90a49ca22a95f184d9f32d35b5247b44032849.tar.gz talos-op-linux-be90a49ca22a95f184d9f32d35b5247b44032849.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (142 commits)
USB: Fix sysfs paths in documentation
USB: skeleton: fix coding style issues.
USB: O_NONBLOCK in read path of skeleton
USB: make usb-skeleton honor O_NONBLOCK in write path
USB: skel_read really sucks royally
USB: Add hub descriptor update hook for xHCI
USB: xhci: Support USB hubs.
USB: xhci: Set multi-TT field for LS/FS devices under hubs.
USB: xhci: Set route string for all devices.
USB: xhci: Fix command wait list handling.
USB: xhci: Change how xHCI commands are handled.
USB: xhci: Refactor input device context setup.
USB: xhci: Endpoint representation refactoring.
USB: gadget: ether needs to select CRC32
USB: fix USBTMC get_capabilities success handling
USB: fix missing error check in probing
USB: usbfs: add USBDEVFS_URB_BULK_CONTINUATION flag
USB: support for autosuspend in sierra while online
USB: ehci-dbgp,ehci: Allow dbpg to work with suspend/resume
USB: ehci-dbgp,documentation: Documentation updates for ehci-dbgp
...
Diffstat (limited to 'drivers/usb/misc/ldusb.c')
| -rw-r--r-- | drivers/usb/misc/ldusb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index ad4fb15b5dcb..90f130126c10 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -412,6 +412,9 @@ static unsigned int ld_usb_poll(struct file *file, poll_table *wait) dev = file->private_data; + if (!dev->intf) + return POLLERR | POLLHUP; + poll_wait(file, &dev->read_wait, wait); poll_wait(file, &dev->write_wait, wait); @@ -767,6 +770,9 @@ static void ld_usb_disconnect(struct usb_interface *intf) ld_usb_delete(dev); } else { dev->intf = NULL; + /* wake up pollers */ + wake_up_interruptible_all(&dev->read_wait); + wake_up_interruptible_all(&dev->write_wait); mutex_unlock(&dev->mutex); } |
