From: Tilman Schmidt <tilman@imap.cc>
Date: Sat, 11 Oct 2014 11:46:30 +0000 (+0200)
Subject: isdn/gigaset: fix usb_gigaset write_cmd result race
X-Git-Tag: omap-for-v3.19/prcm-cleanup~58^2~49^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86f8ef2c4802ac9dbe0c8c1c12670bd915a13013;p=pandora-kernel.git

isdn/gigaset: fix usb_gigaset write_cmd result race

In usb_gigaset function gigaset_write_cmd(), the length field of
the command buffer structure could be cleared by the transmit
tasklet before it was used for the function's return value.
Fix by copying to a local variable before scheduling the tasklet.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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