From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Mon, 13 Feb 2012 14:01:32 +0000 (-0300)
Subject: [media] staging: go7007: fix mismatch in mutex lock-unlock in [read|write]_reg_fp
X-Git-Tag: v3.4-rc1~110^2^2~142
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c07aec31a98a63ee83f2bbad4a2fab0e0f58d33;p=pandora-kernel.git

[media] staging: go7007: fix mismatch in mutex lock-unlock in [read|write]_reg_fp

If go7007_usb_vendor_request() fails in write_reg_fp()
or in read_reg_fp(), the usb->i2c_lock mutex left locked.

The patch moves mutex_unlock(&usb->i2c_lock) before check
for go7007_usb_vendor_request() returned value.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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