HID: core: use scnprintf in modalias_show()

scnprintf() exists to provide these semantics, so we might as well use
it.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index d5ddb7573691..3c1cfc6d9964 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2217,12 +2217,9 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
                              char *buf)
 {
         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-        int len;
-
-        len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
-                       hdev->bus, hdev->group, hdev->vendor, hdev->product);
 
-        return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+        return scnprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
+                         hdev->bus, hdev->group, hdev->vendor, hdev->product);
 }
 static DEVICE_ATTR_RO(modalias);