From: Sonic Zhang <sonic.zhang@analog.com>
Date: Wed, 16 May 2012 06:22:24 +0000 (+0800)
Subject: serial: bfin_uart: narrow the reboot condition in DMA tx interrupt
X-Git-Tag: v3.5-rc1~146^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=239c25b1a03cf57193b9a52623deb918adf6132e;p=pandora-kernel.git

serial: bfin_uart: narrow the reboot condition in DMA tx interrupt

Check if xmit buffer pointers are set to zero.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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