Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 38/68] regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing | Date | Fri, 5 May 2017 11:32:23 -0700 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Seung-Woo Kim <sw0312.kim@samsung.com>
commit 60a2362f769cf549dc466134efe71c8bf9fbaaba upstream.
After freeing pin from regulator_ena_gpio_free, loop can access the pin. So this patch fixes not to access pin after freeing.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Amit Pundir <amit.pundir@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/regulator/core.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1720,6 +1720,8 @@ static void regulator_ena_gpio_free(stru gpiod_put(pin->gpiod); list_del(&pin->list); kfree(pin); + rdev->ena_pin = NULL; + return; } else { pin->request_count--; }
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