2024-06-04 21:23:18

by Wolfram Sang

[permalink] [raw]
Subject: [PATCH 4/4] misc: ti-st: st_kim: use 'time_left' variable with wait_for_completion_interruptible_timeout()

There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_interruptible_timeout() causing patterns like:

timeout = wait_for_completion_interruptible_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 <[email protected]>
---
drivers/misc/ti-st/st_kim.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index c4f963cf96f2..ff172cf4614d 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -198,7 +198,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
{
unsigned short version = 0, chip = 0, min_ver = 0, maj_ver = 0;
static const char read_ver_cmd[] = { 0x01, 0x01, 0x10, 0x00 };
- long timeout;
+ long time_left;

pr_debug("%s", __func__);

@@ -208,11 +208,11 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
return -EIO;
}

- timeout = wait_for_completion_interruptible_timeout(
+ time_left = wait_for_completion_interruptible_timeout(
&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));
- if (timeout <= 0) {
+ if (time_left <= 0) {
pr_err(" waiting for ver info- timed out or received signal");
- return timeout ? -ERESTARTSYS : -ETIMEDOUT;
+ return time_left ? -ERESTARTSYS : -ETIMEDOUT;
}
reinit_completion(&kim_gdata->kim_rcvd);
/*
--
2.43.0