1 files changed, 13 insertions, 9 deletions

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index b121bf4ed73a..649ba8200832 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1680,8 +1680,9 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
 	chip->ecc.strength = pdata->ecc_strength;
 	chip->ecc.size = pdata->ecc_step_size;
 
-	if (nand_scan_ident(mtd, 1, NULL))
-		return -ENODEV;
+	ret = nand_scan_ident(mtd, 1, NULL);
+	if (ret)
+		return ret;
 
 	if (!pdata->keep_config) {
 		ret = pxa3xx_nand_init(host);
@@ -1774,8 +1775,11 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	int ret, irq, cs;
 
 	pdata = dev_get_platdata(&pdev->dev);
-	if (pdata->num_cs <= 0)
+	if (pdata->num_cs <= 0) {
+		dev_err(&pdev->dev, "invalid number of chip selects\n");
 		return -ENODEV;
+	}
+
 	info = devm_kzalloc(&pdev->dev,
 			    sizeof(*info) + sizeof(*host) * pdata->num_cs,
 			    GFP_KERNEL);
@@ -1813,8 +1817,9 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	nand_hw_control_init(chip->controller);
 	info->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(info->clk)) {
-		dev_err(&pdev->dev, "failed to get nand clock\n");
-		return PTR_ERR(info->clk);
+		ret = PTR_ERR(info->clk);
+		dev_err(&pdev->dev, "failed to get nand clock: %d\n", ret);
+		return ret;
 	}
 	ret = clk_prepare_enable(info->clk);
 	if (ret < 0)
@@ -1842,6 +1847,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
 	if (IS_ERR(info->mmio_base)) {
 		ret = PTR_ERR(info->mmio_base);
+		dev_err(&pdev->dev, "failed to map register space: %d\n", ret);
 		goto fail_disable_clk;
 	}
 	info->mmio_phys = r->start;
@@ -1861,7 +1867,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
 				   pxa3xx_nand_irq_thread, IRQF_ONESHOT,
 				   pdev->name, info);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to request IRQ\n");
+		dev_err(&pdev->dev, "failed to request IRQ: %d\n", ret);
 		goto fail_free_buf;
 	}
 
@@ -1960,10 +1966,8 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 	}
 
 	ret = alloc_nand_resource(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "alloc nand resource failed\n");
+	if (ret)
 		return ret;
-	}
 
 	info = platform_get_drvdata(pdev);
 	probe_success = 0;