diff options
| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2020-05-23 16:38:59 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-05-26 19:44:55 +0300 |
| commit | 8d728808194a12186ce5af0b72c8a47b42476bc3 (patch) | |
| tree | edf4476fe48c9fcfcc7f2eed0c6e5294823f6b28 /drivers/spi | |
| parent | c373643b8688836c1627a805875994fe0012fc17 (diff) | |
| download | linux-8d728808194a12186ce5af0b72c8a47b42476bc3.tar.xz | |
spi: spi-fsl-lpspi: Fix runtime PM imbalance on error
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20200523133859.5625-1-dinghao.liu@zju.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 511211b82430..1552b28b9515 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -940,7 +940,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) ret = pm_runtime_get_sync(fsl_lpspi->dev); if (ret < 0) { dev_err(fsl_lpspi->dev, "failed to enable clock\n"); - goto out_controller_put; + goto out_pm_get; } temp = readl(fsl_lpspi->base + IMX7ULP_PARAM); @@ -949,13 +949,15 @@ static int fsl_lpspi_probe(struct platform_device *pdev) ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller); if (ret == -EPROBE_DEFER) - goto out_controller_put; + goto out_pm_get; if (ret < 0) dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret); return 0; +out_pm_get: + pm_runtime_put_noidle(fsl_lpspi->dev); out_controller_put: spi_controller_put(controller); |