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Re: [PATCH v2 4/4] rtl8712: pwrctrl_priv: Replace semaphore lock with mutex

From Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2 4/4] rtl8712: pwrctrl_priv: Replace semaphore lock with mutex
Date 2016-08-21 23:40 +0200
Message-ID <s8IDf-5Jn-17@gated-at.bofh.it> (permalink)
References <rFsqB-1dm-5@gated-at.bofh.it> <rFsqC-1dm-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Jun 02, 2016 at 09:54:10AM +0530, Binoy Jayan wrote:
> 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 <binoy.jayan@linaro.org>
> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
> Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
> ---
> This patch depends on the following patch:
>   rtl8712: intf_priv: Replace semaphore lock with completion

This one patch doesn't apply to my tree for some odd reason.

Can you rebase it on my staging-testing branch and resend it?

thanks,

greg k-h

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Re: [PATCH v2 4/4] rtl8712: pwrctrl_priv: Replace semaphore lock  with mutex Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-21 23:40 +0200

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