From: Founder Fang <founder.fang@gmail.com>
Date: Wed, 21 Nov 2012 07:20:31 +0000 (+0800)
Subject: HID: hidraw: fix nonblock read return EAGAIN after device removed
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~36^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7611e8d26d8dd0e5e132b46e905cb579daf9da1e;p=pandora-kernel.git

HID: hidraw: fix nonblock read return EAGAIN after device removed

When nonblock read the condition check (file->f_flags & O_NONBLOCK) always be
true, signal_pending and device exist checking never get a chance to run, so
the user mode code always get EAGAIN even if device removed. move nonblock mode
checking to the last can fix this problem.

Signed-off-by: Founder Fang <founder.fang@gmail.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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