lkml.org 
[lkml]   [2015]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 1/3] MTD: m25p80: fix write return value.
Date
On Thursday, April 30, 2015 at 03:33:47 PM, Michal Suchanek wrote:
> The size of written data was added to user supplied value rather than
> written at the provided address.

You might want to work on the commit message a little, something like
the following, but feel free to reword as seen fit.

The 'retlen' points to a variable representing the number of data bytes
written/read (see include/linux/mtd/mtd.h) by the current invocation of
the function. This variable must be set, not incremented.

Otherwise, the patch is correct I believe:

Acked-by: Marek Vasut <marex@denx.de>

> Signed-off-by: Michal Suchanek <hramrach@gmail.com>
> ---
> drivers/mtd/devices/m25p80.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
> index 7c8b169..0b2bc21 100644
> --- a/drivers/mtd/devices/m25p80.c
> +++ b/drivers/mtd/devices/m25p80.c
> @@ -102,7 +102,7 @@ static void m25p80_write(struct spi_nor *nor, loff_t
> to, size_t len,
>
> spi_sync(spi, &m);
>
> - *retlen += m.actual_length - cmd_sz;
> + *retlen = m.actual_length - cmd_sz;
> }
>
> static inline unsigned int m25p80_rx_nbits(struct spi_nor *nor)

Best regards,
Marek Vasut


\
 
 \ /
  Last update: 2015-04-30 23:21    [W:0.443 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site