pch_dma: Use GFP_ATOMIC because called from interrupt context
authorTomoya MORINAGA <tomoya.rohm@gmail.com>
Tue, 12 Feb 2013 02:25:33 +0000 (11:25 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 19 May 2013 17:54:48 +0000 (10:54 -0700)
commitdd77cf8cc7aca5902e759c26049730c151bc885f
tree68ac42d4d57fcfbd35e1e5048d7378df0421da4a
parent22f9c13508be586b3cf6a531dc980b169c1320fe
pch_dma: Use GFP_ATOMIC because called from interrupt context

commit 5c1ef59168c485318e40ba485c1eba57d81d0faa upstream.

pdc_desc_get() is called from pd_prep_slave_sg, and the function is
called from interrupt context(e.g. Uart driver "pch_uart.c").
In fact, I saw kernel error message.
So, GFP_ATOMIC must be used not GFP_NOIO.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/dma/pch_dma.c