From: Johan Hovold <johan@kernel.org>
Date: Tue, 10 Jan 2017 11:05:37 +0000 (+0100)
Subject: USB: serial: kl5kusb105: fix line-state error handling
X-Git-Tag: v3.2.86~3
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=70c3dd409057dfe3a5d3486a0600bba340aab664

USB: serial: kl5kusb105: fix line-state error handling

commit 146cc8a17a3b4996f6805ee5c080e7101277c410 upstream.

The current implementation failed to detect short transfers when
attempting to read the line state, and also, to make things worse,
logged the content of the uninitialised heap transfer buffer.

Fixes: abf492e7b3ae ("USB: kl5kusb105: fix DMA buffers on stack")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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