linux-kernel - [PATCH][next] powerpc/ps3: replace open-coded sysfs

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Message-ID: <ZxMV3YvSulJFZ8rk@mail.google.com>
Date: Sat, 19 Oct 2024 15:13:49 +1300
From: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
To: geoff@...radead.org, mpe@...erman.id.au, npiggin@...il.com,
	christophe.leroy@...roup.eu, naveen@...nel.org, maddy@...ux.ibm.com,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc: paulo.miguel.almeida.rodenas@...il.com, linux-hardening@...r.kernel.org
Subject: [PATCH][next] powerpc/ps3: replace open-coded sysfs_emit function

sysfs_emit() helper function should be used when formatting the value
to be returned to user space.

This patch replaces open-coded sysfs_emit() in sysfs .show() callbacks

Link: https://github.com/KSPP/linux/issues/105
Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
---
 arch/powerpc/platforms/ps3/system-bus.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index b9a7d9bae687..afbaabf182d0 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -453,10 +453,9 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
 	char *buf)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
-	int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id,
-			   dev->match_sub_id);
 
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return sysfs_emit(buf, "ps3:%d:%d\n", dev->match_id,
+			  dev->match_sub_id);
 }
 static DEVICE_ATTR_RO(modalias);
 
-- 
2.47.0