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[2/2] HID: roccat: Convert snprintf() to sysfs_emit()

Message ID Y0HTrCgAQ+wc4yGj@octinomon (mailing list archive)
State New, archived
Delegated to: Jiri Kosina
Headers show
Series [1/2] HID: roccat: Convert snprintf() to sysfs_emit() | expand

Commit Message

Jules Irenge Oct. 8, 2022, 7:46 p.m. UTC 
Coccinnelle reports a warning
Warning: Use scnprintf or sprintf

Following the advice on kernel documentation
https://www.kernel.org/doc/html/latest/filesystems/sysfs.html

For show(device *...) functions we should only use sysfs_emit() or sysfs_emit_at()
especially when formatting the value to be returned to user space.

Convert snprintf() to sysfs_emit()

Signed-off-by: Jules Irenge <jules.irenge@postgrad.manchester.ac.uk>
---
 drivers/hid/hid-roccat-koneplus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 1896c69ea512..1635ddc7c3cf 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -244,7 +244,7 @@  static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
 {
 	struct koneplus_device *koneplus =
 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
+	return sysfs_emit(buf, "%d\n", koneplus->actual_profile);
 }
 
 static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
@@ -311,7 +311,7 @@  static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
 			&info, KONEPLUS_SIZE_INFO);
 	mutex_unlock(&koneplus->koneplus_lock);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
+	return sysfs_emit(buf, "%d\n", info.firmware_version);
 }
 static DEVICE_ATTR(firmware_version, 0440,
 		   koneplus_sysfs_show_firmware_version, NULL);