[PATCH AUTOSEL 4.19 008/191] PCI: mediatek: Fix unchecked return value

Sasha Levin
2019-11-10T03:17:17Z

From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>

[ Upstream commit 17a0a1e5f6c4bd6df17834312ff577c1373d87b8 ]

Check return value of devm_pci_remap_iospace().

Addresses-Coverity-ID: 1471965 ("Unchecked return value")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/controller/pcie-mediatek.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index c5ff6ca65eab2..0d100f56cb884 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1120,7 +1120,9 @@ static int mtk_pcie_request_resources(struct mtk_pcie *pcie)
if (err < 0)
return err;

- devm_pci_remap_iospace(dev, &pcie->pio, pcie->io.start);
+ err = devm_pci_remap_iospace(dev, &pcie->pio, pcie->io.start);
+ if (err)
+ return err;

return 0;
}
--
2.20.1