[PATCH] staging: pi433: Remove unnecessary return variable

[Nishka Dasgupta]

From: Nishka Dasgupta <nishka.dasgupta@xxxxxxxxx>

The variable retval is initialised to 0 and assigned a constant value
later. Both of these can be returned separately, hence retval can be
removed.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@xxxxxxxxx>
---
 drivers/staging/pi433/pi433_if.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index c889f0bdf424..40c6f4e7632f 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -871,7 +871,6 @@ pi433_write(struct file *filp, const char __user *buf,
 static long
 pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
-	int			retval = 0;
 	struct pi433_instance	*instance;
 	struct pi433_device	*device;
 	struct pi433_tx_cfg	tx_cfg;
@@ -923,10 +922,10 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		mutex_unlock(&device->rx_lock);
 		break;
 	default:
-		retval = -EINVAL;
+		return -EINVAL;
 	}
 
-	return retval;
+	return 0;
 }
 
 #ifdef CONFIG_COMPAT
-- 
2.19.1