[PATCH 5.18 131/181] iio:proximity:sx9324: Check ret value of device_property_read_u32_array()

[Greg Kroah-Hartman]

From: Aashish Sharma <shraash@xxxxxxxxxx>

commit 70171ed6dc53d2f580166d47f5b66cf51a6d0092 upstream.

0-day reports:

drivers/iio/proximity/sx9324.c:868:3: warning: Value stored
to 'ret' is never read [clang-analyzer-deadcode.DeadStores]

Put an if condition to break out of switch if ret is non-zero.

Signed-off-by: Aashish Sharma <shraash@xxxxxxxxxx>
Fixes: a8ee3b32f5da ("iio:proximity:sx9324: Add dt_binding support")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
[swboyd@xxxxxxxxxxxx: Reword commit subject, add fixes tag]
Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Gwendal Grignou <gwendal@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220613232224.2466278-1-swboyd@xxxxxxxxxxxx
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/iio/proximity/sx9324.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/iio/proximity/sx9324.c
+++ b/drivers/iio/proximity/sx9324.c
@@ -885,6 +885,9 @@ sx9324_get_default_reg(struct device *de
 			break;
 		ret = device_property_read_u32_array(dev, prop, pin_defs,
 						     ARRAY_SIZE(pin_defs));
+		if (ret)
+			break;
+
 		for (pin = 0; pin < SX9324_NUM_PINS; pin++)
 			raw |= (pin_defs[pin] << (2 * pin)) &
 			       SX9324_REG_AFE_PH0_PIN_MASK(pin);