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drivers/base: Convert dev->sem to mutex

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The semaphore is semantically a mutex. Convert it to a real mutex and
fix up a few places where code was relying on semaphore.h to be included
by device.h, as well as the users of the trylock function, as that value
is now reversed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Thomas Gleixner
2010-01-29 20:39:02 +00:00
committed by Greg Kroah-Hartman
parent 190e8370b8
commit 3142788b79
5 changed files with 8 additions and 8 deletions
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drivers/usb/core/usb.c
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@@ -573,7 +573,7 @@ int usb_lock_device_for_reset(struct usb_device *udev,
iface->condition == USB_INTERFACE_UNBOUND))
return -EINTR;
while (usb_trylock_device(udev) != 0) {
while (!usb_trylock_device(udev)) {
/* If we can't acquire the lock after waiting one second,
* we're probably deadlocked */