From 7ce77510c9c7dc76bd03687daa7d909aee948182 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 29 Oct 2014 09:07:31 +0100
Subject: [PATCH] USB: opticon: fix non-atomic allocation in write path

commit e681286de221af78fc85db9222b6a203148c005a upstream.

Write may be called from interrupt context so make sure to use
GFP_ATOMIC for all allocations in write.

Fixes: 0d930e51cfe6 ("USB: opticon: Add Opticon OPN2001 write support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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