korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-14 15:54:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

i2c: stm32f4: use 'time_left' variable with wait_for_completion_timeout()

Browse Source 
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@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
This commit is contained in:
Wolfram Sang 2024-04-27 22:36:00 +02:00 committed by Andi Shyti
parent 7ae38232eb
commit 8839a8df93
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/i2c/busses/i2c-stm32f4.c
View File

@ -681,7 +681,7 @@ static int stm32f4_i2c_xfer_msg(struct stm32f4_i2c_dev *i2c_dev,
{
struct stm32f4_i2c_msg *f4_msg = &i2c_dev->msg;
void __iomem *reg = i2c_dev->base + STM32F4_I2C_CR1;
unsigned long timeout;
unsigned long time_left;
u32 mask;
int ret;
@ -706,11 +706,11 @@ static int stm32f4_i2c_xfer_msg(struct stm32f4_i2c_dev *i2c_dev,
stm32f4_i2c_set_bits(reg, STM32F4_I2C_CR1_START);
}
timeout = wait_for_completion_timeout(&i2c_dev->complete,
time_left = wait_for_completion_timeout(&i2c_dev->complete,
i2c_dev->adap.timeout);
ret = f4_msg->result;
if (!timeout)
if (!time_left)
ret = -ETIMEDOUT;
return ret;