From: Bjorn Helgaas <helgaas@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] ARM/PCI: iop13xx: address uninitialized variable warning
Date: Tue, 27 Jun 2017 17:37:04 -0500 [thread overview]
Message-ID: <20170627223704.GF17844@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <20170621215323.3921382-1-arnd@arndb.de>
On Wed, Jun 21, 2017 at 11:52:59PM +0200, Arnd Bergmann wrote:
> The last rework returned a variable that the compiler cannot prove
> to be initialized:
>
> arch/arm/mach-iop13xx/pci.c: In function 'iop13xx_scan_bus':
> arch/arm/mach-iop13xx/pci.c:509:17: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
>
> In the switch statement that sets the return value, this adds
> a default returning an error.
>
> Fixes: ace27646da8e ("ARM/PCI: Convert PCI scan API to pci_scan_root_bus_bridge()")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Folded into Lorenzo's series on pci/enumeration, thanks!
> ---
> arch/arm/mach-iop13xx/pci.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
> index b97879bfb81a..3c51a9bb9b49 100644
> --- a/arch/arm/mach-iop13xx/pci.c
> +++ b/arch/arm/mach-iop13xx/pci.c
> @@ -553,6 +553,8 @@ int iop13xx_scan_bus(int nr, struct pci_host_bridge *bridge)
> if (!ret)
> pci_bus_atue = bridge->bus;
> break;
> + default:
> + ret = -EINVAL;
> }
>
> return ret;
> --
> 2.9.0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
prev parent reply other threads:[~2017-06-27 22:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 21:52 [PATCH 1/4] ARM/PCI: iop13xx: address uninitialized variable warning Arnd Bergmann
2017-06-21 21:53 ` [PATCH 2/4] ARM/PCI: mv78xx0: pass pci_ops correctly again Arnd Bergmann
2017-06-22 9:38 ` Lorenzo Pieralisi
2017-06-27 23:11 ` Bjorn Helgaas
2017-07-01 13:54 ` Lorenzo Pieralisi
2017-07-02 21:12 ` Bjorn Helgaas
2017-06-21 21:53 ` [PATCH 3/4] PCI: versatile: fix typo Arnd Bergmann
2017-06-27 22:49 ` Bjorn Helgaas
2017-06-21 21:53 ` [PATCH 4/4] PCI: versatile: fix another typo Arnd Bergmann
2017-06-27 22:52 ` Bjorn Helgaas
2017-06-22 8:47 ` [PATCH 1/4] ARM/PCI: iop13xx: address uninitialized variable warning Lorenzo Pieralisi
2017-06-27 22:37 ` Bjorn Helgaas [this message]
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