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Subject[PATCH 09/15] i2c: stm32f7: use 'time_left' variable with wait_for_completion_timeout()
Date
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>
---
drivers/i2c/busses/i2c-stm32f7.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 01210452216b..cfee2d9c09de 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -1789,7 +1789,7 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
struct stm32_i2c_dma *dma = i2c_dev->dma;
struct device *dev = i2c_dev->dev;
- unsigned long timeout;
+ unsigned long time_left;
int i, ret;

f7_msg->addr = addr;
@@ -1809,8 +1809,8 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
if (ret)
goto pm_free;

- timeout = wait_for_completion_timeout(&i2c_dev->complete,
- i2c_dev->adap.timeout);
+ time_left = wait_for_completion_timeout(&i2c_dev->complete,
+ i2c_dev->adap.timeout);
ret = f7_msg->result;
if (ret) {
if (i2c_dev->use_dma)
@@ -1826,7 +1826,7 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
goto pm_free;
}

- if (!timeout) {
+ if (!time_left) {
dev_dbg(dev, "Access to slave 0x%x timed out\n", f7_msg->addr);
if (i2c_dev->use_dma)
dmaengine_terminate_sync(dma->chan_using);
--
2.43.0

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