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* [PATCH 0/5] tty/serial: at91: fix bugs when using multiple serials
@ 2015-02-26  6:55 Leilei Zhao
  2015-02-26  6:55 ` [PATCH 1/5] tty/serial: at91: correct check of buf used in DMA Leilei Zhao
                   ` (4 more replies)
  0 siblings, 5 replies; 8+ messages in thread
From: Leilei Zhao @ 2015-02-26  6:55 UTC (permalink / raw)
  To: nicolas.ferre, gregkh, linux-serial, jslaby
  Cc: linux-kernel, linux-arm-kernel, Leilei Zhao

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


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2015-02-27  7:38 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-02-26  6:55 [PATCH 0/5] tty/serial: at91: fix bugs when using multiple serials Leilei Zhao
2015-02-26  6:55 ` [PATCH 1/5] tty/serial: at91: correct check of buf used in DMA Leilei Zhao
2015-02-26  9:29   ` Jiri Slaby
2015-02-27  7:38     ` Zhao, Leilei
2015-02-26  6:55 ` [PATCH 2/5] tty/serial: at91: correct buffer size " Leilei Zhao
2015-02-26  6:55 ` [PATCH 3/5] tty/serial: at91: revise the return type of atmel_init_property Leilei Zhao
2015-02-26  6:55 ` [PATCH 4/5] tty/serial: at91: set ops in property init each time Leilei Zhao
2015-02-26  6:55 ` [PATCH 5/5] tty/serial: at91: correct the usage of tasklet Leilei Zhao

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