mmc: atmel-mci: Switch to use dev_err_probe()

Switch to use dev_err_probe() to simplify the error path and
unify a message template.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240425170900.3767990-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: andy-shev

drivers/mmc/host/atmel-mci.c

@@ -632,10 +632,8 @@ static int atmci_of_init(struct atmel_mci *host)
 	u32 slot_id;
 	int err;
 
-	if (!np) {
-		dev_err(dev, "device node not found\n");
-		return ERR_PTR(-EINVAL);
-	}
+	if (!np)
+		return dev_err_probe(dev, -EINVAL, "device node not found\n");
 
 	for_each_child_of_node(np, cnp) {
 		if (of_property_read_u32(cnp, "reg", &slot_id)) {
@@ -2551,7 +2549,7 @@ static int atmci_probe(struct platform_device *pdev)
 	}
 
 	if (!nr_slots) {
-		dev_err(dev, "init failed: no slot defined\n");
+		dev_err_probe(dev, ret, "init failed: no slot defined\n");
 		goto err_init_slot;
 	}
 
@@ -2560,8 +2558,7 @@ static int atmci_probe(struct platform_device *pdev)
 		                                  &host->buf_phys_addr,
 						  GFP_KERNEL);
 		if (!host->buffer) {
-			ret = -ENOMEM;
-			dev_err(dev, "buffer allocation failed\n");
+			ret = dev_err_probe(dev, -ENOMEM, "buffer allocation failed\n");
 			goto err_dma_alloc;
 		}
 	}