From: Bart Van Assche <bart.vanassche@linux.dev>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
Boqun Feng <boqun@kernel.org>, Waiman Long <longman@redhat.com>,
linux-kernel@vger.kernel.org, Marco Elver <elver@google.com>,
Christoph Hellwig <hch@lst.de>,
Steven Rostedt <rostedt@goodmis.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Kees Cook <kees@kernel.org>, Jann Horn <jannh@google.com>,
Bart Van Assche <bvanassche@acm.org>,
Frank Crawford <frank@crawford.emu.id.au>,
Guenter Roeck <linux@roeck-us.net>,
Jean Delvare <jdelvare@suse.com>,
linux-hwmon@vger.kernel.org
Subject: [PATCH 14/62] hwmon: (it87) Check the it87_lock() return value
Date: Mon, 23 Feb 2026 14:00:14 -0800 [thread overview]
Message-ID: <20260223220102.2158611-15-bart.vanassche@linux.dev> (raw)
In-Reply-To: <20260223220102.2158611-1-bart.vanassche@linux.dev>
From: Bart Van Assche <bvanassche@acm.org>
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@crawford.emu.id.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: linux-hwmon@vger.kernel.org
Fixes: 376e1a937b30 ("hwmon: (it87) Add calls to smbus_enable/smbus_disable as required")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
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);
+ if (err)
+ return err;
it87_check_pwm(dev);
it87_check_limit_regs(data);
next parent reply other threads:[~2026-02-23 22:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260223220102.2158611-1-bart.vanassche@linux.dev>
2026-02-23 22:00 ` Bart Van Assche [this message]
2026-02-24 15:31 ` [PATCH 14/62] hwmon: (it87) Check the it87_lock() return value Guenter Roeck
[not found] <20260223215118.2154194-1-bvanassche@acm.org>
2026-02-23 21:50 ` Bart Van Assche
[not found] <20260223214950.2153735-1-bvanassche@acm.org>
2026-02-23 21:49 ` Bart Van Assche
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