On Thu, Apr 29, 2021 at 05:42:44PM +0300, Dan Carpenter wrote:

On Wed, Apr 28, 2021 at 04:04:14PM +0300, Andy Shevchenko wrote:

quoted

@@ -75,20 +75,16 @@ static int fbtft_request_one_gpio(struct fbtft_par *par,
 				  struct gpio_desc **gpiop)
 {
 	struct device *dev = par->info->device;
-	int ret = 0;
 
 	*gpiop = devm_gpiod_get_index_optional(dev, name, index,
 					       GPIOD_OUT_LOW);
-	if (IS_ERR(*gpiop)) {
-		ret = PTR_ERR(*gpiop);
-		dev_err(dev,
-			"Failed to request %s GPIO: %d\n", name, ret);
-		return ret;
-	}
+	if (IS_ERR(*gpiop))
+		dev_err_probe(dev, PTR_ERR(*gpiop), "Failed to request %s GPIO\n", name);

This should be a return statement:

		return dev_err_probe(dev, PTR_ERR(*gpiop), "Failed to request %s GPIO\n", name);

I've created a new Smatch check for these:

drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c:2890 mcp251xfd_probe() warn: pointer error 'PTR_ERR(clk)' not handled

There aren't that many bugs...  Anyway, I'm running a test now and I
guess we'll see tomorrow how it goes.

regards,
dan carpenter