rtl8712: pwrctrl_priv: Replace semaphore lock with mutex

The semaphore 'lock' in 'pwrctrl_priv' is used as a simple mutex, so it
should be written as one. Semaphores are going away in the future.
_enter_pwrlock was using down_interruptible(), so the lock could be broken
by sending a signal. This could be a bug, because nothing checks the return
code here. Hence, using mutex_lock instead of the interruptible version.
Removing the now unused _enter_pwrlock and _down_sema.

Signed-off-by: Binoy Jayan <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Tested-by: Larry Finger <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions