spi: spi-fsl-dspi: Check clk_prepare_enable() error
clk_prepare_enable() may fail, so we should better check its
return value and propagate it in the case of failure.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index d57baf6..95d8b92 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -624,10 +624,13 @@
{
struct spi_master *master = dev_get_drvdata(dev);
struct fsl_dspi *dspi = spi_master_get_devdata(master);
+ int ret;
pinctrl_pm_select_default_state(dev);
- clk_prepare_enable(dspi->clk);
+ ret = clk_prepare_enable(dspi->clk);
+ if (ret)
+ return ret;
spi_master_resume(master);
return 0;
@@ -726,7 +729,9 @@
dev_err(&pdev->dev, "unable to get clock\n");
goto out_master_put;
}
- clk_prepare_enable(dspi->clk);
+ ret = clk_prepare_enable(dspi->clk);
+ if (ret)
+ goto out_master_put;
master->max_speed_hz =
clk_get_rate(dspi->clk) / dspi->devtype_data->max_clock_factor;