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serial: fsl_lpuart: move DMA RX timeout calculation
authorStefan Agner <stefan@agner.ch>
Wed, 2 Jul 2014 16:02:56 +0000 (18:02 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Jul 2014 23:03:59 +0000 (16:03 -0700)
commit90abef91c5974d3d4845d64fd75a319fb20f6e6b
tree7855103964528f6e0b7e600381d2c7458998e953tree | snapshot (tar.gz zip)
parentae84db9661cafc63d179e1d985a2c5b841ff0ac4commit | diff
serial: fsl_lpuart: move DMA RX timeout calculation

The DMA RX timeout calculation is done based on FIFO buffer size and
port timeout when setting up DMA. However, both variables are not
necessarily initialized at DMA initialization time, which can lead
to a division by zero.

Move the timeout calculation to set_termios where both variables
are initialized.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/fsl_lpuart.c diff | blob | blame | history