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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/clk/clk_stm32f7.c b/drivers/clk/clk_stm32f7.c
index 68d6ba0461d..96a06b8f8cb 100644
--- a/drivers/clk/clk_stm32f7.c
+++ b/drivers/clk/clk_stm32f7.c
@@ -224,7 +224,7 @@ static unsigned long stm32_clk_get_rate(struct clk *clk)
 		return sysclk >>= shift;
 		break;
 	default:
-		error("clock index %ld out of range\n", clk->id);
+		pr_err("clock index %ld out of range\n", clk->id);
 		return -EINVAL;
 		break;
 	}