Re: [PATCH v3 13/32] mtd: spi-nor: Print error messages inside Reg Ops methods

Boris Brezillon
2019-10-31T11:05:24Z

On Tue, 29 Oct 2019 11:17:09 +0000
<Tudor.Ambarus@microchip.com> wrote:

> From: Tudor Ambarus <tudor.ambarus@microchip.com>
>
> Spare the callers of printing error messages by themselves.
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
> ---
> drivers/mtd/spi-nor/spi-nor.c | 165 +++++++++++++++++++++++++++++++-----------
> 1 file changed, 123 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index e5ed9012cd50..bc46b946ac77 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -394,6 +394,8 @@ static ssize_t spi_nor_write_data(struct spi_nor *nor, loff_t to, size_t len,
> */
> static int spi_nor_write_enable(struct spi_nor *nor)
> {
> + int ret;
> +
> if (nor->spimem) {
> struct spi_mem_op op =
> SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WREN, 1),
> @@ -401,10 +403,16 @@ static int spi_nor_write_enable(struct spi_nor *nor)
> SPI_MEM_OP_NO_DUMMY,
> SPI_MEM_OP_NO_DATA);
>
> - return spi_mem_exec_op(nor->spimem, &op);
> + ret = spi_mem_exec_op(nor->spimem, &op);
> + } else {
> + ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN,
> + NULL, 0);
> }
>
> - return nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, NULL, 0);
> + if (ret)
> + dev_err(nor->dev, "error %d on Write Enable\n", ret);

I thought we agreed on using dev_err_once() here (applies to other
dev_err() calls). If it fails once it's unlikely to succeed on
subsequent calls, and I don't think spamming the kernel logs is very
useful.

> +
> + return ret;
> }