mtd: fsl-quadspi: Print the error value

When displaying dev_err() messages it is useful to print the error value.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NHan Xu <han.xu@freescale.com>
[Brian: fix up "can not" at the same time]
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>

drivers/mtd/spi-nor/fsl-quadspi.c

@@ -830,27 +830,27 @@ static int fsl_qspi_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(q->clk_en);
 	if (ret) {
-		dev_err(dev, "can not enable the qspi_en clock\n");
+		dev_err(dev, "cannot enable the qspi_en clock: %d\n", ret);
 		return ret;
 	}
 
 	ret = clk_prepare_enable(q->clk);
 	if (ret) {
-		dev_err(dev, "can not enable the qspi clock\n");
+		dev_err(dev, "cannot enable the qspi clock: %d\n", ret);
 		goto clk_failed;
 	}
 
 	/* find the irq */
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0) {
-		dev_err(dev, "failed to get the irq\n");
+		dev_err(dev, "failed to get the irq: %d\n", ret);
 		goto irq_failed;
 	}
 
 	ret = devm_request_irq(dev, ret,
 			fsl_qspi_irq_handler, 0, pdev->name, q);
 	if (ret) {
-		dev_err(dev, "failed to request irq.\n");
+		dev_err(dev, "failed to request irq: %d\n", ret);
 		goto irq_failed;
 	}