From 25e057fdde3b33c0d18605ed27b59336a3441925 Mon Sep 17 00:00:00 2001
From: Takeshi Yoshimura <yos@sslab.ics.keio.ac.jp>
Date: Wed, 27 May 2015 11:28:14 -0300
Subject: [PATCH] [media] ddbridge: Do not free_irq() if request_irq() failed

My static checker detected that free_irq() is called even after
request_irq() failed in ddb_probe(). In this case, the kernel may try to
free dev->pdev->irq although the IRQ is not assigned. This event rarely
occurs, but always introduces a warning if it happens.

"goto fail1" always results in disabling enabled MSI and releasing a
requested IRQ. It seems like the former handling is necessary. So I added
a conditional branch before the free_irq() (stat == 0 means request_irq()
succeeds).

Signed-off-by: Takeshi Yoshimura <yos@sslab.ics.keio.ac.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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