From 1dcbdd944824369d4569959f8130336fe6fe5f39 Mon Sep 17 00:00:00 2001 From: Zhang Qilong Date: Mon, 2 Nov 2020 22:58:35 +0800 Subject: [PATCH] spi: imx: fix reference leak in two imx operations pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to pm_runtime_put_noidle will result in reference leak in callers(spi_imx_prepare_message and spi_imx_remove), so we should fix it. Fixes: 525c9e5a32bd7 ("spi: imx: enable runtime pm support") Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20201102145835.4765-1-zhangqilong3@huawei.com Signed-off-by: Mark Brown --- drivers/spi/spi-imx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 4b80e27ecdbf..8911465d8f47 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1538,6 +1538,7 @@ spi_imx_prepare_message(struct spi_master *master, struct spi_message *msg) ret = pm_runtime_get_sync(spi_imx->dev); if (ret < 0) { + pm_runtime_put_noidle(spi_imx->dev); dev_err(spi_imx->dev, "failed to enable clock\n"); return ret; } @@ -1747,6 +1748,7 @@ static int spi_imx_remove(struct platform_device *pdev) ret = pm_runtime_get_sync(spi_imx->dev); if (ret < 0) { + pm_runtime_put_noidle(spi_imx->dev); dev_err(spi_imx->dev, "failed to enable clock\n"); return ret; }