From: Sergey Miroshnichenko <s.miroshnichenko@yadro.com>
To: <linux-pci@vger.kernel.org>
Cc: Sam Bobroff <sbobroff@linux.ibm.com>,
Sergey Miroshnichenko <s.miroshnichenko@yadro.com>,
linux@yadro.com, Bjorn Helgaas <helgaas@kernel.org>,
Oliver <oohall@gmail.com>, Rajat Jain <rajatja@google.com>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH RFC v3 21/21] powerpc/pci: Fix crash with enabled movable BARs
Date: Mon, 4 Feb 2019 18:36:01 +0300 [thread overview]
Message-ID: <20190204153601.7576-22-s.miroshnichenko@yadro.com> (raw)
In-Reply-To: <20190204153601.7576-1-s.miroshnichenko@yadro.com>
Check a resource for the UNSET flags.
Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@yadro.com>
---
arch/powerpc/platforms/powernv/pci-ioda.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 7db3119f8a5b..5354dfdf1028 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3038,7 +3038,8 @@ static void pnv_ioda_setup_pe_res(struct pnv_ioda_pe *pe,
int index;
int64_t rc;
- if (!res || !res->flags || res->start > res->end)
+ if (!res || !res->flags || res->start > res->end ||
+ (res->flags & IORESOURCE_UNSET))
return;
if (res->flags & IORESOURCE_IO) {
--
2.20.1
prev parent reply other threads:[~2019-02-04 15:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 15:35 [PATCH RFC v3 00/21] PCI: Allow BAR movement during hotplug Sergey Miroshnichenko
2019-02-04 15:35 ` [PATCH RFC v3 02/21] PCI: Fix race condition in pci_enable/disable_device() Sergey Miroshnichenko
2019-02-04 15:35 ` [PATCH RFC v3 05/21] PCI: hotplug: Add a flag for the movable BARs feature Sergey Miroshnichenko
2019-02-04 15:35 ` [PATCH RFC v3 06/21] PCI: Pause the devices with movable BARs during rescan Sergey Miroshnichenko
2019-02-04 15:36 ` Sergey Miroshnichenko [this message]
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