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>

2 files changed, 2 insertions, 2 deletions

diff --git a/board/samsung/common/exynos5-dt.c b/board/samsung/common/exynos5-dt.c
index ae2a6e6bfa..0d17f30712 100644
--- a/board/samsung/common/exynos5-dt.c
+++ b/board/samsung/common/exynos5-dt.c
@@ -161,7 +161,7 @@ int board_usb_init(int index, enum usb_init_type init)
 		samsung_get_base_usb3_phy();
 
 	if (!phy) {
-		error("usb3 phy not supported");
+		pr_err("usb3 phy not supported");
 		return -ENODEV;
 	}
 
diff --git a/board/samsung/common/misc.c b/board/samsung/common/misc.c
index 4157349d02..eba25b7b98 100644
--- a/board/samsung/common/misc.c
+++ b/board/samsung/common/misc.c
@@ -457,7 +457,7 @@ void draw_logo(void)
 
 	addr = panel_info.logo_addr;
 	if (!addr) {
-		error("There is no logo data.");
+		pr_err("There is no logo data.");
 		return;
 	}