From: Dmitry Torokhov <dtor@chromium.org>
To: Simon Horman <horms@verge.net.au>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Phil Edworthy <phil.edworthy@renesas.com>,
linux-pci@vger.kernel.org, linux-sh@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] PCI: rcar: fix error handling of irq_of_parse_and_map
Date: Fri, 14 Nov 2014 14:21:53 -0800 [thread overview]
Message-ID: <20141114222153.GA39494@dtor-ws> (raw)
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
---
Not tested, found by casual code inspection.
drivers/pci/host/pcie-rcar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 9b356c3..6ca976f 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -764,7 +764,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
goto err_map_reg;
i = irq_of_parse_and_map(pdev->dev.of_node, 0);
- if (i < 0) {
+ if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT;
goto err_map_reg;
@@ -772,7 +772,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
pcie->msi.irq1 = i;
i = irq_of_parse_and_map(pdev->dev.of_node, 1);
- if (i < 0) {
+ if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT;
goto err_map_reg;
--
2.1.0.rc2.206.gedb03e5
--
Dmitry
WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Torokhov <dtor@chromium.org>
To: Simon Horman <horms@verge.net.au>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Phil Edworthy <phil.edworthy@renesas.com>,
linux-pci@vger.kernel.org, linux-sh@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] PCI: rcar: fix error handling of irq_of_parse_and_map
Date: Fri, 14 Nov 2014 22:21:53 +0000 [thread overview]
Message-ID: <20141114222153.GA39494@dtor-ws> (raw)
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
---
Not tested, found by casual code inspection.
drivers/pci/host/pcie-rcar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 9b356c3..6ca976f 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -764,7 +764,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
goto err_map_reg;
i = irq_of_parse_and_map(pdev->dev.of_node, 0);
- if (i < 0) {
+ if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT;
goto err_map_reg;
@@ -772,7 +772,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
pcie->msi.irq1 = i;
i = irq_of_parse_and_map(pdev->dev.of_node, 1);
- if (i < 0) {
+ if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT;
goto err_map_reg;
--
2.1.0.rc2.206.gedb03e5
--
Dmitry
next reply other threads:[~2014-11-14 22:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 22:21 Dmitry Torokhov [this message]
2014-11-14 22:21 ` [PATCH] PCI: rcar: fix error handling of irq_of_parse_and_map Dmitry Torokhov
2014-11-18 10:43 ` Phil Edworthy
2014-12-09 22:38 ` Bjorn Helgaas
2014-12-09 22:38 ` Bjorn Helgaas
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