[PATCH v2 3/4] hwmon: chipcap2: enable IRQ processing when regulator is already enabled

[Javier Carrasco <javier.carrasco.cruz@gmail.com>]

cc2_enable() returns early when the regulator is already enabled.
This can happen if a previous regulator_disable() failed or if the
regulator was configured as always-on.

In this case, process_irqs remains false, causing the ready interrupt
to be ignored. Subsequent operations waiting for the ready completion
then time out.

Set process_irqs before returning when the regulator is already
enabled, so that the driver continues to process ready interrupts.

Fixes: 3af350929e75 ("hwmon: Add support for Amphenol ChipCap 2")
Cc: stable@vger.kernel.org
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
---
 drivers/hwmon/chipcap2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/chipcap2.c b/drivers/hwmon/chipcap2.c
index 15630d1dd90a..57d22d65612c 100644
--- a/drivers/hwmon/chipcap2.c
+++ b/drivers/hwmon/chipcap2.c
@@ -119,8 +119,10 @@ static int cc2_enable(struct cc2_data *data)
 	int ret;
 
 	/* exclusive regulator, check in case a disable failed */
-	if (regulator_is_enabled(data->regulator))
+	if (regulator_is_enabled(data->regulator)) {
+		data->process_irqs = true;
 		return 0;
+	}
 
 	/* clear any pending completion */
 	try_wait_for_completion(&data->complete);

-- 
2.43.0