i2c: sun6-p2wi: fix call to snprintf

Fixes possible issue in case pdev name contains formatting characters.
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Reported-by: Kees Cook <keescook@google.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-sun6i-p2wi.c

@@ -237,7 +237,7 @@ static int p2wi_probe(struct platform_device *pdev)
 	if (IS_ERR(p2wi->regs))
 		return PTR_ERR(p2wi->regs);
 
-	snprintf(p2wi->adapter.name, sizeof(p2wi->adapter.name), pdev->name);
+	strlcpy(p2wi->adapter.name, pdev->name, sizeof(p2wi->adapter.name));
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(dev, "failed to retrieve irq: %d\n", irq);