Re: [PATCH] mos7840: fix chars_in_buffer() return value

From: Sergei Shtylyov
Date: Sat Sep 24 2016 - 09:57:25 EST


On 9/24/2016 4:47 PM, Stas Sergeev wrote:

The TIOCOUTQ ioctl calls chars_in_buffer(), and some apps depend on
a correct behaviour of that.
mos7840 implements it wrongly: if you write just one char, TIOCOUTQ
will return 32.
This patch should fix it by accounting the number of chars actually
writCaylan Van Larson <i@xxxxxxxxxx>ten.


This patch, unfortunately, misses the Tesed-by tag.


The reported didn't test it, and I don't have the hardware in question.


Signed-off-by: Stas Sergeev <stsp@xxxxxxx>
Reported-by: Caylan Van Larson <i@xxxxxxxxxx>
CC: Caylan Van Larson <i@xxxxxxxxxx>
CC: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
CC: Johan Hovold <johan@xxxxxxxxxx>
CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
CC: linux-usb@xxxxxxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx

MBR, Sergei