Re: [PATCH v2 5/5] clk: Get runtime PM before walking tree for clk_summary

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Quoting Stephen Boyd (2024-03-25 11:41:59)
> Similar to the previous commit, we should make sure that all devices are
> runtime resumed before printing the clk_summary through debugfs. Failure
> to do so would result in a deadlock if the thread is resuming a device
> to print clk state and that device is also runtime resuming in another
> thread, e.g the screen is turning on and the display driver is starting
> up. We remove the calls to clk_pm_runtime_{get,put}() in this path
> because they're superfluous now that we know the devices are runtime
> resumed. This also squashes a bug where the return value of
> clk_pm_runtime_get() wasn't checked, leading to an RPM count underflow
> on error paths.
> 
> Fixes: 1bb294a7981c ("clk: Enable/Disable runtime PM for clk_summary")
> Cc: Taniya Das <quic_tdas@xxxxxxxxxxx>
> Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
> ---

Applied to clk-fixes





[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux