USB: gadget: Replace deprecated strncpy() with strscpy()

strncpy() is deprecated for NUL-terminated destination buffers; use strscpy() instead. Since kzalloc() already zeroes out the destination buffer, the potential NUL-padding by strncpy() is unnecessary. strscpy() copies only the required characters and guarantees NUL-termination.

Since the destination buffer has a fixed length, strscpy() automatically determines its size using sizeof() when the argument is omitted. This makes an explicit sizeof() call unnecessary.

The source string is also NUL-terminated and meets the __must_be_cstr() requirement of strscpy().

No functional changes intended.

Link https://github.com/KSPP/linux/issues/90

Cc [email protected]

Signed-off-by Thorsten Blum <[email protected]>

---
 drivers/usb/gadget/legacy/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/usb/gadget/legacy/inode.c +1 -1

index b6a30d88a800..fcce84a726f2 100644
@@ -1615,7 +1615,7 @@ static int activate_ep_files (struct dev_data *dev)
 		mutex_init(&data->lock);
 		init_waitqueue_head (&data->wait);
 
-		strncpy (data->name, ep->name, sizeof (data->name) - 1);
+		strscpy(data->name, ep->name);
 		refcount_set (&data->count, 1);
 		data->dev = dev;
 		get_dev (dev);