[PATCH v6 1/9] locking/mutex: introduce devm_mutex_init
Marek Behún
kabel at kernel.org
Thu Mar 14 21:40:25 AEDT 2024
On Thu, 14 Mar 2024 11:45:23 +0300
George Stark <gnstark at salutedevices.com> wrote:
> Using of devm API leads to a certain order of releasing resources.
> So all dependent resources which are not devm-wrapped should be deleted
> with respect to devm-release order. Mutex is one of such objects that
> often is bound to other resources and has no own devm wrapping.
> Since mutex_destroy() actually does nothing in non-debug builds
> frequently calling mutex_destroy() is just ignored which is safe for now
> but wrong formally and can lead to a problem if mutex_destroy() will be
> extended so introduce devm_mutex_init()
>
> Signed-off-by: George Stark <gnstark at salutedevices.com>
> Suggested by-by: Christophe Leroy <christophe.leroy at csgroup.eu>
Reviewed-by: Marek Behún <kabel at kernel.org>
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