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From: Utkarsh Verma <utkarshverma294@gmail.com>
To: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>,
	linux-kernel-mentees@lists.linuxfoundation.org
Subject: [PATCH] USB: serial: iuu_phoenix: fix checkpatch memset warning
Date: Tue,  3 Aug 2021 19:50:45 +0530	[thread overview]
Message-ID: <20210803142045.17082-1-utkarshverma294@gmail.com> (raw)
In-Reply-To: <CAKXUXMymBWUcy53a38hA9b3VYL0af2vpDW0=xsCEWuiiUQQn-w@mail.gmail.com>

This fixed the below checkpatch issue:
WARNING: single byte memset is suspicious. Swapped 2nd/3rd argument?

Logically the code is correct, but it is unusual to use memset for a
single byte only. The same can be achieved by using a simple
assignment.

Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
---
 drivers/usb/serial/iuu_phoenix.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 19753611e..6bab12f4f 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -253,7 +253,7 @@ static int iuu_status(struct usb_serial_port *port)
 {
 	int result;
 
-	memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
+	*(char *)port->write_urb->transfer_buffer = IUU_GET_STATE_REGISTER;
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 			  usb_sndbulkpipe(port->serial->dev,
 					  port->bulk_out_endpointAddress),
@@ -1056,7 +1056,7 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	dev_dbg(dev, "%s - initialization done\n", __func__);
 
-	memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
+	*(char *)port->write_urb->transfer_buffer = IUU_UART_RX;
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 			  usb_sndbulkpipe(port->serial->dev,
 					  port->bulk_out_endpointAddress),
-- 
2.17.1

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  parent reply	other threads:[~2021-08-03 14:21 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-17  6:46 Linux Kernel: Checkpatch Documentation Mentorship Tasks Utkarsh Verma
2021-07-17  7:23 ` Lukas Bulwahn
2021-07-24 22:06   ` Utkarsh Verma
2021-07-26 10:40     ` Lukas Bulwahn
2021-08-03 14:17       ` [PATCH] Documentation: checkpatch: Add SPLIT_STRING message Utkarsh Verma
2021-08-03 14:52         ` Dwaipayan Ray
2021-08-03 18:13           ` Utkarsh Verma
2021-08-03 18:20             ` Lukas Bulwahn
2021-08-04 18:09               ` [PATCH v2] " Utkarsh Verma
2021-08-03 14:19       ` [PATCH] Documentation: checkpatch: Add SYMBOLIC_PERMS message Utkarsh Verma
2021-08-03 14:20       ` [PATCH] Documentation: checkpatch: Add TRAILING_SEMICOLON message Utkarsh Verma
2021-08-03 15:20         ` Dwaipayan Ray
2021-08-03 21:19           ` [PATCH v2] " Utkarsh Verma
2021-08-05 13:49             ` Dwaipayan Ray
2021-08-20 19:53               ` [PATCH v3] " Utkarsh Verma
2021-08-22 17:29                 ` Dwaipayan Ray
2021-08-03 14:20       ` Utkarsh Verma [this message]
2021-08-03 14:21       ` [PATCH] USB: serial: iuu_phoenix: fix quoted string split across lines Utkarsh Verma
2021-08-05 13:52         ` Dwaipayan Ray
2021-08-05 14:20           ` Lukas Bulwahn
2021-08-06 13:12             ` Utkarsh Verma
2021-08-25  8:22             ` [PATCH v2] " Utkarsh Verma
2021-08-03 14:21       ` [PATCH] USB: serial: iuu_phoenix: Replace symbolic permissions by octal permissions Utkarsh Verma
2021-08-03 18:11         ` Lukas Bulwahn
2021-08-03 18:37           ` [PATCH v2] " Utkarsh Verma
2021-08-20 10:09             ` Lukas Bulwahn
2021-08-20 19:08               ` Utkarsh Verma
2021-08-04 19:12           ` [PATCH] " Utkarsh Verma
2021-08-05  9:26             ` Lukas Bulwahn
2021-08-06 19:12               ` Utkarsh Verma
2021-08-03 16:36       ` Linux Kernel: Checkpatch Documentation Mentorship Tasks Utkarsh Verma
2021-08-03 18:07         ` Lukas Bulwahn
2021-08-03 21:37           ` [PATCH v2] Documentation: checkpatch: Add SYMBOLIC_PERMS message Utkarsh Verma
2021-08-03 21:49             ` Dwaipayan Ray
2021-08-04 15:31               ` [PATCH v3] " Utkarsh Verma
2021-08-05 13:51                 ` Dwaipayan Ray
2021-08-06 13:46                   ` Utkarsh Verma
2021-08-06 19:56                     ` Dwaipayan Ray
2021-08-06 20:03                       ` Lukas Bulwahn
2021-08-06 20:10                       ` [PATCH v4] " Utkarsh Verma
2021-08-22 17:52                         ` Dwaipayan Ray
2021-08-23  7:18                           ` Lukas Bulwahn
2021-08-24 22:13                             ` [PATCH v5] " Utkarsh Verma

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