From: Chuhong Yuan hslester96@gmail.com
[ Upstream commit a96de139301385e5992768c0f60240ddfbb33325 ]
ad9834_probe misses a check for devm_clk_get and may cause problems. Add a check like what ad9832 does to fix it.
Signed-off-by: Chuhong Yuan hslester96@gmail.com Reviewed-by: Dan Carpenter dan.carpenter@oracle.com Reviewed-by: Alexandru Ardelean alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/iio/frequency/ad9834.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c index 038d6732c3fdb..23026978a5a5f 100644 --- a/drivers/staging/iio/frequency/ad9834.c +++ b/drivers/staging/iio/frequency/ad9834.c @@ -417,6 +417,10 @@ static int ad9834_probe(struct spi_device *spi) st = iio_priv(indio_dev); mutex_init(&st->lock); st->mclk = devm_clk_get(&spi->dev, NULL); + if (IS_ERR(st->mclk)) { + ret = PTR_ERR(st->mclk); + goto error_disable_reg; + }
ret = clk_prepare_enable(st->mclk); if (ret) {