linux-kernel - [PATCH] thermal: intel: Use sysfs

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Message-ID: <20260113082130.789891-2-thorsten.blum@linux.dev>
Date: Tue, 13 Jan 2026 09:21:26 +0100
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>
Cc: Thorsten Blum <thorsten.blum@...ux.dev>,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] thermal: intel: Use sysfs_emit in sysfs show functions

Replace sprintf() with sysfs_emit() in sysfs show functions.
sysfs_emit() is preferred to format sysfs output as it provides better
bounds checking.

Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 drivers/thermal/intel/therm_throt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/intel/therm_throt.c b/drivers/thermal/intel/therm_throt.c
index debc94e2dc16..44fa4dd15dd1 100644
--- a/drivers/thermal/intel/therm_throt.c
+++ b/drivers/thermal/intel/therm_throt.c
@@ -23,6 +23,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/smp.h>
+#include <linux/sysfs.h>
 #include <linux/cpu.h>
 
 #include <asm/processor.h>
@@ -144,8 +145,8 @@ static ssize_t therm_throt_device_show_##event##_##name(		\
 									\
 	preempt_disable();	/* CPU hotplug */			\
 	if (cpu_online(cpu)) {						\
-		ret = sprintf(buf, "%lu\n",				\
-			      per_cpu(thermal_state, cpu).event.name);	\
+		ret = sysfs_emit(buf, "%lu\n",				\
+			per_cpu(thermal_state, cpu).event.name);	\
 	} else								\
 		ret = 0;						\
 	preempt_enable();						\
-- 
Thorsten Blum <thorsten.blum@...ux.dev>
GPG: 1D60 735E 8AEF 3BE4 73B6  9D84 7336 78FD 8DFE EAD4