lkml.org 
[lkml]   [2020]   [Dec]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] spi: Fix the clamping of spi->max_speed_hz
On Wed, Dec 16, 2020 at 10:23 AM Tudor Ambarus
<tudor.ambarus@microchip.com> wrote:
> If spi->controller->max_speed_hz is zero, a non-zero spi->max_speed_hz
> will be overwritten by zero. Make sure spi->controller->max_speed_hz
> is not zero when clamping spi->max_speed_hz.
>
> Put the spi->controller->max_speed_hz non-zero check higher in the if,
> so that we avoid a superfluous init to zero when both spi->max_speed_hz
> and spi->controller->max_speed_hz are zero.
>
> Fixes: 9326e4f1e5dd ("spi: Limit the spi device max speed to controller's max speed")
> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>

Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

\
 
 \ /
  Last update: 2020-12-16 13:39    [W:0.032 / U:0.964 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site