[PATCH 5.4 83/83] ASoC: stm32: spdifrx: fix regmap status check

[Greg Kroah-Hartman]

From: Olivier Moysan <olivier.moysan@xxxxxx>

commit a168dae5ea14283e8992d5282237bb0d6a3e1c06 upstream.

Release resources when exiting on error.

Fixes: 1a5c0b28fc56 ("ASoC: stm32: spdifrx: manage identification registers")

Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxx>
Link: https://lore.kernel.org/r/20200318144125.9163-2-olivier.moysan@xxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/soc/stm/stm32_spdifrx.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/sound/soc/stm/stm32_spdifrx.c
+++ b/sound/soc/stm/stm32_spdifrx.c
@@ -995,6 +995,8 @@ static int stm32_spdifrx_probe(struct pl
 
 	if (idr == SPDIFRX_IPIDR_NUMBER) {
 		ret = regmap_read(spdifrx->regmap, STM32_SPDIFRX_VERR, &ver);
+		if (ret)
+			goto error;
 
 		dev_dbg(&pdev->dev, "SPDIFRX version: %lu.%lu registered\n",
 			FIELD_GET(SPDIFRX_VERR_MAJ_MASK, ver),