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, 3 insertions, 3 deletions

diff --git a/drivers/adc/rockchip-saradc.c b/drivers/adc/rockchip-saradc.c
index 0e6271d097a..a2856db497d 100644
--- a/drivers/adc/rockchip-saradc.c
+++ b/drivers/adc/rockchip-saradc.c
@@ -46,7 +46,7 @@ int rockchip_saradc_channel_data(struct udevice *dev, int channel,
 	struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev);
 
 	if (channel != priv->active_channel) {
-		error("Requested channel is not active!");
+		pr_err("Requested channel is not active!");
 		return -EINVAL;
 	}
 
@@ -69,7 +69,7 @@ int rockchip_saradc_start_channel(struct udevice *dev, int channel)
 	struct rockchip_saradc_priv *priv = dev_get_priv(dev);
 
 	if (channel < 0 || channel >= priv->data->num_channels) {
-		error("Requested channel is invalid!");
+		pr_err("Requested channel is invalid!");
 		return -EINVAL;
 	}
 
@@ -125,7 +125,7 @@ int rockchip_saradc_ofdata_to_platdata(struct udevice *dev)
 	data = (struct rockchip_saradc_data *)dev_get_driver_data(dev);
 	priv->regs = (struct rockchip_saradc_regs *)dev_read_addr(dev);
 	if (priv->regs == (struct rockchip_saradc_regs *)FDT_ADDR_T_NONE) {
-		error("Dev: %s - can't get address!", dev->name);
+		pr_err("Dev: %s - can't get address!", dev->name);
 		return -ENODATA;
 	}