lkml.org 
[lkml]   [2018]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/3] i2c: uniphier-f: make driver robust against concurrency
On Tue, Oct 16, 2018 at 12:01:47PM +0900, Masahiro Yamada wrote:
> This is unlikely to happen, but it is possible for a CPU to enter
> the interrupt handler just after wait_for_completion_timeout() has
> expired. If this happens, the hardware is accessed from multiple
> contexts concurrently.
>
> Disable the IRQ after wait_for_completion_timeout(), and do nothing
> from the handler when the IRQ is disabled.
>
> Fixes: 6a62974b667f ("i2c: uniphier_f: add UniPhier FIFO-builtin I2C driver")
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Applied to for-next, thanks!

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2018-10-28 23:09    [W:0.605 / U:0.168 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site