linux-kernel - [PATCH] Clean up lirc zilog error codes

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Date:   Tue, 11 Jul 2017 19:57:05 +0200
From:   Yves Lemée <yves.lemee.kernel@...il.com>
To:     mchehab@...nel.org
Cc:     gregkh@...uxfoundation.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Clean up lirc zilog error codes

According the coding style guidelines, the ENOSYS error code must be returned
in case of a non existent system call. This code has been replaced with
the ENOTTY error code indicating, a missing functionality.

Signed-off-by: Yves Lemée <yves.lemee.kernel@...il.com>
---
 drivers/staging/media/lirc/lirc_zilog.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
index 015e41bd036e..26dd32d5b5b2 100644
--- a/drivers/staging/media/lirc/lirc_zilog.c
+++ b/drivers/staging/media/lirc/lirc_zilog.c
@@ -1249,7 +1249,7 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 		break;
 	case LIRC_GET_REC_MODE:
 		if (!(features & LIRC_CAN_REC_MASK))
-			return -ENOSYS;
+			return -ENOTTY;
 
 		result = put_user(LIRC_REC2MODE
 				  (features & LIRC_CAN_REC_MASK),
@@ -1257,21 +1257,21 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 		break;
 	case LIRC_SET_REC_MODE:
 		if (!(features & LIRC_CAN_REC_MASK))
-			return -ENOSYS;
+			return -ENOTTY;
 
 		result = get_user(mode, uptr);
 		if (!result && !(LIRC_MODE2REC(mode) & features))
-			result = -EINVAL;
+			result = -ENOTTY;
 		break;
 	case LIRC_GET_SEND_MODE:
 		if (!(features & LIRC_CAN_SEND_MASK))
-			return -ENOSYS;
+			return -ENOTTY;
 
 		result = put_user(LIRC_MODE_PULSE, uptr);
 		break;
 	case LIRC_SET_SEND_MODE:
 		if (!(features & LIRC_CAN_SEND_MASK))
-			return -ENOSYS;
+			return -ENOTTY;
 
 		result = get_user(mode, uptr);
 		if (!result && mode != LIRC_MODE_PULSE)
-- 
2.13.2