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Message-ID:
<DU0PR04MB941778B81FB5524CF943E96888142@DU0PR04MB9417.eurprd04.prod.outlook.com>
Date: Sun, 28 Apr 2024 01:45:12 +0000
From: Peng Fan <peng.fan@....com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>,
"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>
CC: Aisheng Dong <aisheng.dong@....com>, Andi Shyti <andi.shyti@...nel.org>,
Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam
<festevam@...il.com>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 05/15] i2c: imx-lpi2c: use 'time_left' variable with
wait_for_completion_timeout()
> Subject: [PATCH 05/15] i2c: imx-lpi2c: use 'time_left' variable with
> wait_for_completion_timeout()
>
> There is a confusing pattern in the kernel to use a variable named 'timeout' to
> store the result of wait_for_completion_timeout() causing patterns like:
>
> timeout = wait_for_completion_timeout(...)
> if (!timeout) return -ETIMEDOUT;
>
> with all kinds of permutations. Use 'time_left' as a variable to make the code
> self explaining.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
Reviewed-by: Peng Fan <peng.fan@....com>
> ---
> drivers/i2c/busses/i2c-imx-lpi2c.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-
> lpi2c.c
> index 36e8f6196a87..0197786892a2 100644
> --- a/drivers/i2c/busses/i2c-imx-lpi2c.c
> +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
> @@ -307,11 +307,11 @@ static int lpi2c_imx_master_disable(struct
> lpi2c_imx_struct *lpi2c_imx)
>
> static int lpi2c_imx_msg_complete(struct lpi2c_imx_struct *lpi2c_imx) {
> - unsigned long timeout;
> + unsigned long time_left;
>
> - timeout = wait_for_completion_timeout(&lpi2c_imx->complete, HZ);
> + time_left = wait_for_completion_timeout(&lpi2c_imx->complete, HZ);
>
> - return timeout ? 0 : -ETIMEDOUT;
> + return time_left ? 0 : -ETIMEDOUT;
> }
>
> static int lpi2c_imx_txfifo_empty(struct lpi2c_imx_struct *lpi2c_imx)
> --
> 2.43.0
>
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