Re: [PATCH RFC 29/33] hwmon: (it87) Check the it87_lock() return value

From: Guenter Roeck
Date: Thu Feb 06 2025 - 17:54:09 EST


On 2/6/25 09:51, Bart Van Assche wrote:
Return early in it87_resume() if it87_lock() fails instead of ignoring the
return value of that function. This patch suppresses a Clang thread-safety
warning.

Cc: Frank Crawford <frank@xxxxxxxxxxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Fixes: 376e1a937b30 ("hwmon: (it87) Add calls to smbus_enable/smbus_disable as required")
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/hwmon/it87.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index e233aafa8856..8e3935089fca 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -3593,7 +3593,9 @@ static int it87_resume(struct device *dev)
it87_resume_sio(pdev);
- it87_lock(data);
+ int err = it87_lock(data);

I am not going to accept patches with inline variable declarations
if the patch is fixing an earlier problem, sorry. This only results
in unnecessary backport failures.

Guenter