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/common/dfu.c b/common/dfu.c
index 546a1ab..07dff31 100644
--- a/common/dfu.c
+++ b/common/dfu.c
@@ -26,13 +26,13 @@
 
 	ret = board_usb_init(usbctrl_index, USB_INIT_DEVICE);
 	if (ret) {
-		error("board usb init failed\n");
+		pr_err("board usb init failed\n");
 		return CMD_RET_FAILURE;
 	}
 	g_dnl_clear_detach();
 	ret = g_dnl_register(usb_dnl_gadget);
 	if (ret) {
-		error("g_dnl_register failed");
+		pr_err("g_dnl_register failed");
 		return CMD_RET_FAILURE;
 	}
 
@@ -75,7 +75,7 @@
 			ret = dfu_flush(dfu_get_defer_flush(), NULL, 0, 0);
 			dfu_set_defer_flush(NULL);
 			if (ret) {
-				error("Deferred dfu_flush() failed!");
+				pr_err("Deferred dfu_flush() failed!");
 				goto exit;
 			}
 		}
diff --git a/common/fb_mmc.c b/common/fb_mmc.c
index 26d60b8..cf5b77c 100644
--- a/common/fb_mmc.c
+++ b/common/fb_mmc.c
@@ -84,7 +84,7 @@
 	blkcnt = lldiv(blkcnt, info->blksz);
 
 	if (blkcnt > info->size) {
-		error("too large for partition: '%s'\n", part_name);
+		pr_err("too large for partition: '%s'\n", part_name);
 		fastboot_fail("too large for partition");
 		return;
 	}
@@ -93,7 +93,7 @@
 
 	blks = blk_dwrite(dev_desc, info->start, blkcnt, buffer);
 	if (blks != blkcnt) {
-		error("failed writing to device %d\n", dev_desc->devnum);
+		pr_err("failed writing to device %d\n", dev_desc->devnum);
 		fastboot_fail("failed writing to device");
 		return;
 	}
@@ -125,7 +125,7 @@
 	sector_size = info->blksz;
 	hdr_sectors = DIV_ROUND_UP(sizeof(struct andr_img_hdr), sector_size);
 	if (hdr_sectors == 0) {
-		error("invalid number of boot sectors: 0");
+		pr_err("invalid number of boot sectors: 0");
 		fastboot_fail("invalid number of boot sectors: 0");
 		return 0;
 	}
@@ -133,7 +133,7 @@
 	/* Read the boot image header */
 	res = blk_dread(dev_desc, info->start, hdr_sectors, (void *)hdr);
 	if (res != hdr_sectors) {
-		error("cannot read header from boot partition");
+		pr_err("cannot read header from boot partition");
 		fastboot_fail("cannot read header from boot partition");
 		return 0;
 	}
@@ -141,7 +141,7 @@
 	/* Check boot header magic string */
 	res = android_image_check_header(hdr);
 	if (res != 0) {
-		error("bad boot image magic");
+		pr_err("bad boot image magic");
 		fastboot_fail("boot partition not initialized");
 		return 0;
 	}
@@ -179,7 +179,7 @@
 	/* Get boot partition info */
 	res = part_get_info_by_name(dev_desc, BOOT_PARTITION_NAME, &info);
 	if (res < 0) {
-		error("cannot find boot partition");
+		pr_err("cannot find boot partition");
 		fastboot_fail("cannot find boot partition");
 		return -1;
 	}
@@ -191,14 +191,14 @@
 	/* Read boot image header */
 	hdr_sectors = fb_mmc_get_boot_header(dev_desc, &info, hdr);
 	if (hdr_sectors == 0) {
-		error("unable to read boot image header");
+		pr_err("unable to read boot image header");
 		fastboot_fail("unable to read boot image header");
 		return -1;
 	}
 
 	/* Check if boot image has second stage in it (we don't support it) */
 	if (hdr->second_size > 0) {
-		error("moving second stage is not supported yet");
+		pr_err("moving second stage is not supported yet");
 		fastboot_fail("moving second stage is not supported yet");
 		return -1;
 	}
@@ -216,7 +216,7 @@
 	res = blk_dread(dev_desc, ramdisk_sector_start, ramdisk_sectors,
 			ramdisk_buffer);
 	if (res != ramdisk_sectors) {
-		error("cannot read ramdisk from boot partition");
+		pr_err("cannot read ramdisk from boot partition");
 		fastboot_fail("cannot read ramdisk from boot partition");
 		return -1;
 	}
@@ -225,7 +225,7 @@
 	hdr->kernel_size = download_bytes;
 	res = blk_dwrite(dev_desc, info.start, hdr_sectors, (void *)hdr);
 	if (res == 0) {
-		error("cannot writeback boot image header");
+		pr_err("cannot writeback boot image header");
 		fastboot_fail("cannot write back boot image header");
 		return -1;
 	}
@@ -237,7 +237,7 @@
 	res = blk_dwrite(dev_desc, kernel_sector_start, kernel_sectors,
 			 download_buffer);
 	if (res == 0) {
-		error("cannot write new kernel");
+		pr_err("cannot write new kernel");
 		fastboot_fail("cannot write new kernel");
 		return -1;
 	}
@@ -249,7 +249,7 @@
 	res = blk_dwrite(dev_desc, ramdisk_sector_start, ramdisk_sectors,
 			 ramdisk_buffer);
 	if (res == 0) {
-		error("cannot write back original ramdisk");
+		pr_err("cannot write back original ramdisk");
 		fastboot_fail("cannot write back original ramdisk");
 		return -1;
 	}
@@ -268,7 +268,7 @@
 
 	dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
-		error("invalid mmc device\n");
+		pr_err("invalid mmc device\n");
 		fastboot_fail("invalid mmc device");
 		return;
 	}
@@ -322,7 +322,7 @@
 #endif
 
 	if (part_get_info_by_name_or_alias(dev_desc, cmd, &info) < 0) {
-		error("cannot find partition: '%s'\n", cmd);
+		pr_err("cannot find partition: '%s'\n", cmd);
 		fastboot_fail("cannot find partition");
 		return;
 	}
@@ -360,21 +360,21 @@
 	struct mmc *mmc = find_mmc_device(CONFIG_FASTBOOT_FLASH_MMC_DEV);
 
 	if (mmc == NULL) {
-		error("invalid mmc device");
+		pr_err("invalid mmc device");
 		fastboot_fail("invalid mmc device");
 		return;
 	}
 
 	dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
 	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
-		error("invalid mmc device");
+		pr_err("invalid mmc device");
 		fastboot_fail("invalid mmc device");
 		return;
 	}
 
 	ret = part_get_info_by_name_or_alias(dev_desc, cmd, &info);
 	if (ret < 0) {
-		error("cannot find partition: '%s'", cmd);
+		pr_err("cannot find partition: '%s'", cmd);
 		fastboot_fail("cannot find partition");
 		return;
 	}
@@ -393,7 +393,7 @@
 
 	blks = blk_derase(dev_desc, blks_start, blks_size);
 	if (blks != blks_size) {
-		error("failed erasing from device %d", dev_desc->devnum);
+		pr_err("failed erasing from device %d", dev_desc->devnum);
 		fastboot_fail("failed erasing from device");
 		return;
 	}
diff --git a/common/fb_nand.c b/common/fb_nand.c
index 3d027d4..aa28046 100644
--- a/common/fb_nand.c
+++ b/common/fb_nand.c
@@ -40,20 +40,20 @@
 
 	ret = mtdparts_init();
 	if (ret) {
-		error("Cannot initialize MTD partitions\n");
+		pr_err("Cannot initialize MTD partitions\n");
 		fastboot_fail("cannot init mtdparts");
 		return ret;
 	}
 
 	ret = find_dev_and_part(partname, &dev, &pnum, part);
 	if (ret) {
-		error("cannot find partition: '%s'", partname);
+		pr_err("cannot find partition: '%s'", partname);
 		fastboot_fail("cannot find partition");
 		return ret;
 	}
 
 	if (dev->id->type != MTD_DEV_TYPE_NAND) {
-		error("partition '%s' is not stored on a NAND device",
+		pr_err("partition '%s' is not stored on a NAND device",
 		      partname);
 		fastboot_fail("not a NAND device");
 		return -EINVAL;
@@ -154,7 +154,7 @@
 
 	ret = fb_nand_lookup(cmd, &mtd, &part);
 	if (ret) {
-		error("invalid NAND device");
+		pr_err("invalid NAND device");
 		fastboot_fail("invalid NAND device");
 		return;
 	}
@@ -209,7 +209,7 @@
 
 	ret = fb_nand_lookup(cmd, &mtd, &part);
 	if (ret) {
-		error("invalid NAND device");
+		pr_err("invalid NAND device");
 		fastboot_fail("invalid NAND device");
 		return;
 	}
@@ -220,7 +220,7 @@
 
 	ret = _fb_nand_erase(mtd, part);
 	if (ret) {
-		error("failed erasing from device %s", mtd->name);
+		pr_err("failed erasing from device %s", mtd->name);
 		fastboot_fail("failed erasing from device");
 		return;
 	}
diff --git a/common/spl/spl_dfu.c b/common/spl/spl_dfu.c
index 2c97473..05bb210 100644
--- a/common/spl/spl_dfu.c
+++ b/common/spl/spl_dfu.c
@@ -42,13 +42,13 @@
 	set_default_env(0);
 	str_env = env_get(dfu_alt_info);
 	if (!str_env) {
-		error("\"dfu_alt_info\" env variable not defined!\n");
+		pr_err("\"dfu_alt_info\" env variable not defined!\n");
 		return -EINVAL;
 	}
 
 	ret = env_set("dfu_alt_info", str_env);
 	if (ret) {
-		error("unable to set env variable \"dfu_alt_info\"!\n");
+		pr_err("unable to set env variable \"dfu_alt_info\"!\n");
 		return -EINVAL;
 	}
 
diff --git a/common/spl/spl_sdp.c b/common/spl/spl_sdp.c
index 350bcdb..333d518 100644
--- a/common/spl/spl_sdp.c
+++ b/common/spl/spl_sdp.c
@@ -24,13 +24,13 @@
 
 	ret = sdp_init(controller_index);
 	if (ret) {
-		error("SDP init failed: %d", ret);
+		pr_err("SDP init failed: %d", ret);
 		return -ENODEV;
 	}
 
 	/* This command typically does not return but jumps to an image */
 	sdp_handle(controller_index);
-	error("SDP ended");
+	pr_err("SDP ended");
 
 	return -EINVAL;
 }
diff --git a/common/update.c b/common/update.c
index 974f465..33bffaa 100644
--- a/common/update.c
+++ b/common/update.c
@@ -242,7 +242,7 @@
 	} else if (interface && devstring) {
 		update_tftp_dfu = true;
 	} else {
-		error("Interface: %s and devstring: %s not supported!\n",
+		pr_err("Interface: %s and devstring: %s not supported!\n",
 		      interface, devstring);
 		return -EINVAL;
 	}