Viresh Kumar a43a64a0b1 opp: Prevent memory leak in dev_pm_opp_attach_genpd() ... [ Upstream commit cb60e9602cce1593eb1e9cdc8ee562815078a354 ] If dev_pm_opp_attach_genpd() is called multiple times (once for each CPU sharing the table), then it would result in unwanted behavior like memory leak, attaching the domain multiple times, etc. Handle that by checking and returning earlier if the domains are already attached. Now that dev_pm_opp_detach_genpd() can get called multiple times as well, we need to protect that too. Note that the virtual device pointers aren't returned in this case, as they may become unavailable to some callers during the middle of the operation. Reported-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-03-16 16:39:19 +08:00
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Kconfig	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
core.c	opp: Prevent memory leak in dev_pm_opp_attach_genpd()	2021-03-16 16:39:19 +08:00
cpu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
debugfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
of.c	opp: Increase parsed_static_opps in _of_add_opp_table_v1()	2021-03-16 16:37:28 +08:00
opp.h	opp: Replace list_kref with a local counter	2021-03-16 16:36:45 +08:00
ti-opp-supply.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00