[PATCHv6 01/11] ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
tony at atomide.com
Tue Oct 16 22:41:10 EDT 2012
* Paul Walmsley <paul at pwsan.com> [121016 19:26]:
> On Tue, 25 Sep 2012, Tero Kristo wrote:
> > Previously the code only acquired spinlock after increasing / decreasing
> > the usecount value, which is wrong. This leaves a small window where
> > a task switch may occur between the check of the usecount and the actual
> > wakeup / sleep of the domain. Fixed by moving the spinlock locking before
> > the usecount access. Left the usecount as atomic_t if someone wants an
> > easy access to the parameter through atomic_read.
> > Signed-off-by: Tero Kristo <t-kristo at ti.com>
> Acked-by: Paul Walmsley <paul at pwsan.com>
OK I'll apply this into omap-for-v3.7-rc1/fixes-take4.
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