[PATCH] clk: lmk04832: Handle reset GPIO lookup errors

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

devm_gpiod_get_optional() may return -EPROBE_DEFER or other errors,
but lmk04832_probe() currently ignores them.

Check the return value and propagate errors from the reset GPIO lookup.

Fixes: 3bc61cfd6f4a ("clk: add support for the lmk04832")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 drivers/clk/clk-lmk04832.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/clk-lmk04832.c b/drivers/clk/clk-lmk04832.c
index f9a0684d2628..81801ccb2675 100644
--- a/drivers/clk/clk-lmk04832.c
+++ b/drivers/clk/clk-lmk04832.c
@@ -1410,6 +1410,9 @@ static int lmk04832_probe(struct spi_device *spi)
 
 	lmk->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset",
 						  GPIOD_OUT_LOW);
+	if (IS_ERR(lmk->reset_gpio))
+		return dev_err_probe(lmk->dev, PTR_ERR(lmk->reset_gpio),
+				     "failed to get reset GPIO\n");
 
 	lmk->dclk = devm_kcalloc(lmk->dev, info->num_channels >> 1,
 				 sizeof(struct lmk_dclk), GFP_KERNEL);
-- 
2.43.0