treewide: replace with error() with pr_err()

U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 0ed72d5..1293e18 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -179,7 +179,7 @@
 
 	ret = regulator_set_enable(vbus_supply, true);
 	if (ret) {
-		error("Error enabling vbus supply\n");
+		pr_err("Error enabling vbus supply\n");
 		return ret;
 	}
 
diff --git a/drivers/usb/host/dwc3-sti-glue.c b/drivers/usb/host/dwc3-sti-glue.c
index 02ad311..6dc656a 100644
--- a/drivers/usb/host/dwc3-sti-glue.c
+++ b/drivers/usb/host/dwc3-sti-glue.c
@@ -71,7 +71,7 @@
 		break;
 
 	default:
-		error("Unsupported mode of operation %d\n", plat->mode);
+		pr_err("Unsupported mode of operation %d\n", plat->mode);
 		return -EINVAL;
 	}
 	writel(val, plat->syscfg_base + plat->syscfg_offset);
@@ -113,7 +113,7 @@
 	ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev),
 				   "reg", reg, ARRAY_SIZE(reg));
 	if (ret) {
-		error("unable to find st,stih407-dwc3 reg property(%d)\n", ret);
+		pr_err("unable to find st,stih407-dwc3 reg property(%d)\n", ret);
 		return ret;
 	}
 
@@ -124,14 +124,14 @@
 	ret = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, "st,syscfg",
 					   &syscon);
 	if (ret) {
-		error("unable to find syscon device (%d)\n", ret);
+		pr_err("unable to find syscon device (%d)\n", ret);
 		return ret;
 	}
 
 	/* get syscfg-reg base address */
 	regmap = syscon_get_regmap(syscon);
 	if (!regmap) {
-		error("unable to find regmap\n");
+		pr_err("unable to find regmap\n");
 		return -ENODEV;
 	}
 	plat->syscfg_base = regmap->base;
@@ -139,14 +139,14 @@
 	/* get powerdown reset */
 	ret = reset_get_by_name(dev, "powerdown", &plat->powerdown_ctl);
 	if (ret) {
-		error("can't get powerdown reset for %s (%d)", dev->name, ret);
+		pr_err("can't get powerdown reset for %s (%d)", dev->name, ret);
 		return ret;
 	}
 
 	/* get softreset reset */
 	ret = reset_get_by_name(dev, "softreset", &plat->softreset_ctl);
 	if (ret)
-		error("can't get soft reset for %s (%d)", dev->name, ret);
+		pr_err("can't get soft reset for %s (%d)", dev->name, ret);
 
 	return ret;
 };
@@ -159,14 +159,14 @@
 	/* check if one subnode is present */
 	dwc3_node = fdt_first_subnode(gd->fdt_blob, dev_of_offset(dev));
 	if (dwc3_node <= 0) {
-		error("Can't find subnode for %s\n", dev->name);
+		pr_err("Can't find subnode for %s\n", dev->name);
 		return -ENODEV;
 	}
 
 	/* check if the subnode compatible string is the dwc3 one*/
 	if (fdt_node_check_compatible(gd->fdt_blob, dwc3_node,
 				      "snps,dwc3") != 0) {
-		error("Can't find dwc3 subnode for %s\n", dev->name);
+		pr_err("Can't find dwc3 subnode for %s\n", dev->name);
 		return -ENODEV;
 	}
 
@@ -187,13 +187,13 @@
 	/* deassert both powerdown and softreset */
 	ret = reset_deassert(&plat->powerdown_ctl);
 	if (ret < 0) {
-		error("DWC3 powerdown reset deassert failed: %d", ret);
+		pr_err("DWC3 powerdown reset deassert failed: %d", ret);
 		return ret;
 	}
 
 	ret = reset_deassert(&plat->softreset_ctl);
 	if (ret < 0) {
-		error("DWC3 soft reset deassert failed: %d", ret);
+		pr_err("DWC3 soft reset deassert failed: %d", ret);
 		goto softreset_err;
 	}
 
@@ -208,14 +208,14 @@
 init_err:
 	ret = reset_assert(&plat->softreset_ctl);
 	if (ret < 0) {
-		error("DWC3 soft reset deassert failed: %d", ret);
+		pr_err("DWC3 soft reset deassert failed: %d", ret);
 		return ret;
 	}
 
 softreset_err:
 	ret = reset_assert(&plat->powerdown_ctl);
 	if (ret < 0)
-		error("DWC3 powerdown reset deassert failed: %d", ret);
+		pr_err("DWC3 powerdown reset deassert failed: %d", ret);
 
 	return ret;
 }
@@ -228,13 +228,13 @@
 	/* assert both powerdown and softreset */
 	ret = reset_assert(&plat->powerdown_ctl);
 	if (ret < 0) {
-		error("DWC3 powerdown reset deassert failed: %d", ret);
+		pr_err("DWC3 powerdown reset deassert failed: %d", ret);
 		return ret;
 	}
 
 	ret = reset_assert(&plat->softreset_ctl);
 	if (ret < 0)
-		error("DWC3 soft reset deassert failed: %d", ret);
+		pr_err("DWC3 soft reset deassert failed: %d", ret);
 
 	return ret;
 }
diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index 18e1e0e..1cb92c0 100644
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -51,7 +51,7 @@
 				break;
 			err = clk_enable(&priv->clocks[i]);
 			if (err) {
-				error("failed to enable clock %d\n", i);
+				pr_err("failed to enable clock %d\n", i);
 				clk_free(&priv->clocks[i]);
 				goto clk_err;
 			}
@@ -59,7 +59,7 @@
 		}
 	} else {
 		if (clock_nb != -ENOENT) {
-			error("failed to get clock phandle(%d)\n", clock_nb);
+			pr_err("failed to get clock phandle(%d)\n", clock_nb);
 			return clock_nb;
 		}
 	}
@@ -80,7 +80,7 @@
 				break;
 
 			if (reset_deassert(&priv->resets[i])) {
-				error("failed to deassert reset %d\n", i);
+				pr_err("failed to deassert reset %d\n", i);
 				reset_free(&priv->resets[i]);
 				goto reset_err;
 			}
@@ -88,7 +88,7 @@
 		}
 	} else {
 		if (reset_nb != -ENOENT) {
-			error("failed to get reset phandle(%d)\n", reset_nb);
+			pr_err("failed to get reset phandle(%d)\n", reset_nb);
 			goto clk_err;
 		}
 	}
@@ -96,14 +96,14 @@
 	err = generic_phy_get_by_index(dev, 0, &priv->phy);
 	if (err) {
 		if (err != -ENOENT) {
-			error("failed to get usb phy\n");
+			pr_err("failed to get usb phy\n");
 			goto reset_err;
 		}
 	} else {
 
 		err = generic_phy_init(&priv->phy);
 		if (err) {
-			error("failed to init usb phy\n");
+			pr_err("failed to init usb phy\n");
 			goto reset_err;
 		}
 	}
@@ -122,17 +122,17 @@
 	if (generic_phy_valid(&priv->phy)) {
 		ret = generic_phy_exit(&priv->phy);
 		if (ret)
-			error("failed to release phy\n");
+			pr_err("failed to release phy\n");
 	}
 
 reset_err:
 	ret = reset_release_all(priv->resets, priv->reset_count);
 	if (ret)
-		error("failed to assert all resets\n");
+		pr_err("failed to assert all resets\n");
 clk_err:
 	ret = clk_release_all(priv->clocks, priv->clock_count);
 	if (ret)
-		error("failed to disable all clocks\n");
+		pr_err("failed to disable all clocks\n");
 
 	return err;
 }
diff --git a/drivers/usb/host/ohci-generic.c b/drivers/usb/host/ohci-generic.c
index e22ee97..bf55a71 100644
--- a/drivers/usb/host/ohci-generic.c
+++ b/drivers/usb/host/ohci-generic.c
@@ -47,14 +47,14 @@
 
 			err = clk_enable(&priv->clocks[i]);
 			if (err) {
-				error("failed to enable clock %d\n", i);
+				pr_err("failed to enable clock %d\n", i);
 				clk_free(&priv->clocks[i]);
 				goto clk_err;
 			}
 			priv->clock_count++;
 		}
 	} else if (clock_nb != -ENOENT) {
-		error("failed to get clock phandle(%d)\n", clock_nb);
+		pr_err("failed to get clock phandle(%d)\n", clock_nb);
 		return clock_nb;
 	}
 
@@ -74,28 +74,28 @@
 
 			err = reset_deassert(&priv->resets[i]);
 			if (err) {
-				error("failed to deassert reset %d\n", i);
+				pr_err("failed to deassert reset %d\n", i);
 				reset_free(&priv->resets[i]);
 				goto reset_err;
 			}
 			priv->reset_count++;
 		}
 	} else if (reset_nb != -ENOENT) {
-		error("failed to get reset phandle(%d)\n", reset_nb);
+		pr_err("failed to get reset phandle(%d)\n", reset_nb);
 		goto clk_err;
 	}
 
 	err = generic_phy_get_by_index(dev, 0, &priv->phy);
 	if (err) {
 		if (err != -ENOENT) {
-			error("failed to get usb phy\n");
+			pr_err("failed to get usb phy\n");
 			goto reset_err;
 		}
 	} else {
 
 		err = generic_phy_init(&priv->phy);
 		if (err) {
-			error("failed to init usb phy\n");
+			pr_err("failed to init usb phy\n");
 			goto reset_err;
 		}
 	}
@@ -110,17 +110,17 @@
 	if (generic_phy_valid(&priv->phy)) {
 		ret = generic_phy_exit(&priv->phy);
 		if (ret)
-			error("failed to release phy\n");
+			pr_err("failed to release phy\n");
 	}
 
 reset_err:
 	ret = reset_release_all(priv->resets, priv->reset_count);
 	if (ret)
-		error("failed to assert all resets\n");
+		pr_err("failed to assert all resets\n");
 clk_err:
 	ret = clk_release_all(priv->clocks, priv->clock_count);
 	if (ret)
-		error("failed to disable all clocks\n");
+		pr_err("failed to disable all clocks\n");
 
 	return err;
 }
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index 4191a89..258d1cd 100644
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -128,13 +128,13 @@
 	ret = generic_phy_get_by_index(dev, 0, &plat->usb_phy);
 	if (ret) {
 		if (ret != -ENOENT) {
-			error("Failed to get USB PHY for %s\n", dev->name);
+			pr_err("Failed to get USB PHY for %s\n", dev->name);
 			return ret;
 		}
 	} else {
 		ret = generic_phy_init(&plat->usb_phy);
 		if (ret) {
-			error("Can't init USB PHY for %s\n", dev->name);
+			pr_err("Can't init USB PHY for %s\n", dev->name);
 			return ret;
 		}
 	}
@@ -161,7 +161,7 @@
 	if (generic_phy_valid(&plat->usb_phy)) {
 		ret = generic_phy_exit(&plat->usb_phy);
 		if (ret) {
-			error("Can't deinit USB PHY for %s\n", dev->name);
+			pr_err("Can't deinit USB PHY for %s\n", dev->name);
 			return ret;
 		}
 	}
diff --git a/drivers/usb/host/xhci-rockchip.c b/drivers/usb/host/xhci-rockchip.c
index ca3abff..b1f9884 100644
--- a/drivers/usb/host/xhci-rockchip.c
+++ b/drivers/usb/host/xhci-rockchip.c
@@ -46,7 +46,7 @@
 	 */
 	plat->hcd_base = dev_read_addr(dev);
 	if (plat->hcd_base == FDT_ADDR_T_NONE) {
-		error("Can't get the XHCI register base address\n");
+		pr_err("Can't get the XHCI register base address\n");
 		return -ENXIO;
 	}
 
@@ -60,7 +60,7 @@
 	}
 
 	if (plat->phy_base == FDT_ADDR_T_NONE) {
-		error("Can't get the usbphy register address\n");
+		pr_err("Can't get the usbphy register address\n");
 		return -ENXIO;
 	}
 
@@ -117,7 +117,7 @@
 
 	ret = dwc3_core_init(rkxhci->dwc3_reg);
 	if (ret) {
-		error("failed to initialize core\n");
+		pr_err("failed to initialize core\n");
 		return ret;
 	}
 
@@ -149,14 +149,14 @@
 	if (plat->vbus_supply) {
 		ret = regulator_set_enable(plat->vbus_supply, true);
 		if (ret) {
-			error("XHCI: failed to set VBus supply\n");
+			pr_err("XHCI: failed to set VBus supply\n");
 			return ret;
 		}
 	}
 
 	ret = rockchip_xhci_core_init(ctx, dev);
 	if (ret) {
-		error("XHCI: failed to initialize controller\n");
+		pr_err("XHCI: failed to initialize controller\n");
 		return ret;
 	}
 
@@ -179,7 +179,7 @@
 	if (plat->vbus_supply) {
 		ret = regulator_set_enable(plat->vbus_supply, false);
 		if (ret)
-			error("XHCI: failed to set VBus supply\n");
+			pr_err("XHCI: failed to set VBus supply\n");
 	}
 
 	return ret;