Re: [RFC/RFT v3 05/14] soc: amlogic: meson-clk-measure: protect measure with a mutex
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: 2019-07-03 00:35:10
Also in:
linux-amlogic, linux-clk, linux-gpio, lkml
Hi Neil, On Mon, Jul 1, 2019 at 11:13 AM Neil Armstrong [off-list ref] wrote:
quoted hunk ↗ jump to hunk
In order to protect clock measuring when multiple process asks for a measure, protect the main measure function with mutexes. Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Neil Armstrong <redacted> --- drivers/soc/amlogic/meson-clk-measure.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)diff --git a/drivers/soc/amlogic/meson-clk-measure.c b/drivers/soc/amlogic/meson-clk-measure.c index 19d4cbc93a17..c470e24f1dfa 100644 --- a/drivers/soc/amlogic/meson-clk-measure.c +++ b/drivers/soc/amlogic/meson-clk-measure.c@@ -11,6 +11,8 @@ #include <linux/debugfs.h> #include <linux/regmap.h> +static DEFINE_MUTEX(measure_lock);
I wonder if that should be part of struct meson_msr for consistency reasons apart from that: Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel