From: Wang Li wangli74@huawei.com
[ Upstream commit a03675497970a93fcf25d81d9d92a59c2d7377a7 ]
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced.
Fixes: 944c01a889d9 ("spi: lpspi: enable runtime pm for lpspi") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Wang Li wangli74@huawei.com Link: https://lore.kernel.org/r/20210409095430.29868-1-wangli74@huawei.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-fsl-lpspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index a2886ee44e4c..5d98611dd999 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -200,7 +200,7 @@ static int lpspi_prepare_xfer_hardware(struct spi_controller *controller) spi_controller_get_devdata(controller); int ret;
- ret = pm_runtime_get_sync(fsl_lpspi->dev); + ret = pm_runtime_resume_and_get(fsl_lpspi->dev); if (ret < 0) { dev_err(fsl_lpspi->dev, "failed to enable clock\n"); return ret;