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Message-ID: <1424933725-16242-1-git-send-email-leilei.zhao@atmel.com>
Date: Thu, 26 Feb 2015 14:55:20 +0800
From: Leilei Zhao <leilei.zhao@...el.com>
To: <nicolas.ferre@...el.com>, <gregkh@...uxfoundation.org>,
<linux-serial@...r.kernel.org>, <jslaby@...e.cz>
CC: <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
Leilei Zhao <leilei.zhao@...el.com>
Subject: [PATCH 0/5] tty/serial: at91: fix bugs when using multiple serials
The series of patches fix bugs when using multiple serial ports at the same time:
- The using rx ring buffer in DMA is inconsistent with its allocation.
- The serial port can't send and receive data when it's opened the second time
and the later if it switches to PIO when DMA channel is not available.
- The serial port can lead to kernel crash when data is sending and receiving
and the program is killed.
The patches were made from branch tty-next of gregkh/tty.git repository, and
tested on a SAMA5D36 VB boards with 5 serial ports enabled.
Leilei Zhao (5):
tty/serial: at91: correct check of buf used in DMA
tty/serial: at91: correct buffer size used in DMA
tty/serial: at91: revise the return type of atmel_init_property
tty/serial: at91: set ops in property init each time
tty/serial: at91: correct the usage of tasklet
drivers/tty/serial/atmel_serial.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
--
1.7.9.5
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