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Date:   Wed, 09 Nov 2016 20:29:29 -0500 (EST)
From:   David Miller <>
Subject: Re: [Xen PATCH] xen-netback: fix error handling output

From: Arnd Bergmann <>
Date: Tue,  8 Nov 2016 14:34:34 +0100

> The connect function prints an unintialized error code after an
> earlier initialization was removed:
> drivers/net/xen-netback/xenbus.c: In function 'connect':
> drivers/net/xen-netback/xenbus.c:938:3: error: 'err' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> This prints it as -EINVAL instead, which seems to be the most
> appropriate error code. Before the patch that caused the warning,
> this would print a positive number returned by vsscanf() instead,
> which is also wrong. We probably don't need a backport though,
> as fixing the warning here should be sufficient.
> Fixes: f95842e7a9f2 ("xen: make use of xenbus_read_unsigned() in xen-netback")
> Fixes: 8d3d53b3e433 ("xen-netback: Add support for multiple queues")
> Signed-off-by: Arnd Bergmann <>

That first Fixes: commit mentioned is in neither of my trees, so I
assume it is in the Xen tree and thus this fix should get applied

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