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| author | Ingo Molnar <mingo@elte.hu> | 2009-10-25 17:30:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-25 17:30:53 +0100 |
| commit | 0b9e31e9264f1bad89856afb96da1688292f13b4 (patch) | |
| tree | 7a9e9b6456dce993efeed8734de0a15a1f16ae94 /drivers/usb/misc/legousbtower.c | |
| parent | sched: Remove obsolete comment in sched_init() (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus (diff) | |
| download | linux-0b9e31e9264f1bad89856afb96da1688292f13b4.tar.xz linux-0b9e31e9264f1bad89856afb96da1688292f13b4.zip | |
Merge branch 'linus' into sched/core
Conflicts:
fs/proc/array.c
Merge reason: resolve conflict and queue up dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/usb/misc/legousbtower.c')
| -rw-r--r-- | drivers/usb/misc/legousbtower.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index c1e2433f640d..faa6d623de78 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -266,7 +266,7 @@ static const struct file_operations tower_fops = { .llseek = tower_llseek, }; -static char *legousbtower_nodename(struct device *dev) +static char *legousbtower_devnode(struct device *dev, mode_t *mode) { return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev)); } @@ -277,7 +277,7 @@ static char *legousbtower_nodename(struct device *dev) */ static struct usb_class_driver tower_class = { .name = "legousbtower%d", - .nodename = legousbtower_nodename, + .devnode = legousbtower_devnode, .fops = &tower_fops, .minor_base = LEGO_USB_TOWER_MINOR_BASE, }; @@ -552,6 +552,9 @@ static unsigned int tower_poll (struct file *file, poll_table *wait) dev = file->private_data; + if (!dev->udev) + return POLLERR | POLLHUP; + poll_wait(file, &dev->read_wait, wait); poll_wait(file, &dev->write_wait, wait); @@ -1025,6 +1028,9 @@ static void tower_disconnect (struct usb_interface *interface) tower_delete (dev); } else { dev->udev = NULL; + /* wake up pollers */ + wake_up_interruptible_all(&dev->read_wait); + wake_up_interruptible_all(&dev->write_wait); mutex_unlock(&dev->lock); } |