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Date: Mon, 21 Jan 2013 11:09:25 +0100
From: Thierry Reding <thierry.reding@...onic-design.de>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Arnd Bergmann <arnd@...db.de>,
Wolfram Sang <w.sang@...gutronix.de>,
Wim Van Sebroeck <wim@...ana.be>,
linux-watchdog@...r.kernel.org
Subject: [PATCH 32/33] watchdog: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
Cc: Wim Van Sebroeck <wim@...ana.be>
Cc: linux-watchdog@...r.kernel.org
---
drivers/watchdog/ar7_wdt.c | 8 +++-----
drivers/watchdog/dw_wdt.c | 6 +++---
drivers/watchdog/imx2_wdt.c | 8 +++-----
drivers/watchdog/jz4740_wdt.c | 6 +++---
drivers/watchdog/lantiq_wdt.c | 8 +++-----
drivers/watchdog/max63xx_wdt.c | 7 ++++---
drivers/watchdog/pnx4008_wdt.c | 6 +++---
drivers/watchdog/txx9wdt.c | 6 +++---
8 files changed, 25 insertions(+), 30 deletions(-)
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 3003e2a..2f3cc8f 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -285,11 +285,9 @@ static int ar7_wdt_probe(struct platform_device *pdev)
return -ENODEV;
}
- ar7_wdt = devm_request_and_ioremap(&pdev->dev, ar7_regs_wdt);
- if (!ar7_wdt) {
- pr_err("could not ioremap registers\n");
- return -ENXIO;
- }
+ ar7_wdt = devm_ioremap_resource(&pdev->dev, ar7_regs_wdt);
+ if (IS_ERR(ar7_wdt))
+ return PTR_ERR(ar7_wdt);
vbus_clk = clk_get(NULL, "vbus");
if (IS_ERR(vbus_clk)) {
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index a0eba3c..2037669 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -301,9 +301,9 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
if (!mem)
return -EINVAL;
- dw_wdt.regs = devm_request_and_ioremap(&pdev->dev, mem);
- if (!dw_wdt.regs)
- return -ENOMEM;
+ dw_wdt.regs = devm_ioremap_resource(&pdev->dev, mem);
+ if (IS_ERR(dw_wdt.regs))
+ return PTR_ERR(dw_wdt.regs);
dw_wdt.clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dw_wdt.clk))
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 9a45d029..7f023e2 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -262,11 +262,9 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
return -ENODEV;
}
- imx2_wdt.base = devm_request_and_ioremap(&pdev->dev, res);
- if (!imx2_wdt.base) {
- dev_err(&pdev->dev, "ioremap failed\n");
- return -ENOMEM;
- }
+ imx2_wdt.base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(imx2_wdt.base))
+ return PTR_ERR(imx2_wdt.base);
imx2_wdt.clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(imx2_wdt.clk)) {
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index a61408f..1cb25f6 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -171,9 +171,9 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
watchdog_set_drvdata(jz4740_wdt, drvdata);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- drvdata->base = devm_request_and_ioremap(&pdev->dev, res);
- if (drvdata->base == NULL) {
- ret = -EBUSY;
+ drvdata->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(drvdata->base)) {
+ ret = PTR_ERR(drvdata->base);
goto err_out;
}
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 79fe01b..088fd0c 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -197,11 +197,9 @@ ltq_wdt_probe(struct platform_device *pdev)
return -ENOENT;
}
- ltq_wdt_membase = devm_request_and_ioremap(&pdev->dev, res);
- if (!ltq_wdt_membase) {
- dev_err(&pdev->dev, "cannot remap I/O memory region\n");
- return -ENOMEM;
- }
+ ltq_wdt_membase = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ltq_wdt_membase))
+ return PTR_ERR(ltq_wdt_membase);
/* we do not need to enable the clock as it is always running */
clk = clk_get_io();
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 773c661..cc9d328 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -14,6 +14,7 @@
* another interface, some abstraction will have to be introduced.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
@@ -198,9 +199,9 @@ static int max63xx_wdt_probe(struct platform_device *pdev)
heartbeat = current_timeout->twd;
wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- wdt_base = devm_request_and_ioremap(&pdev->dev, wdt_mem);
- if (!wdt_base)
- return -ENOMEM;
+ wdt_base = devm_ioremap_resource(&pdev->dev, wdt_mem);
+ if (IS_ERR(wdt_base))
+ return PTR_ERR(wdt_base);
max63xx_wdt_dev.timeout = heartbeat;
watchdog_set_nowayout(&max63xx_wdt_dev, nowayout);
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index dcba5da..de1f3fa 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -155,9 +155,9 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
heartbeat = DEFAULT_HEARTBEAT;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- wdt_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!wdt_base)
- return -EADDRINUSE;
+ wdt_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(wdt_base))
+ return PTR_ERR(wdt_base);
wdt_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(wdt_clk))
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index 98e1637..626dc0b 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -121,9 +121,9 @@ static int __init txx9wdt_probe(struct platform_device *dev)
}
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- txx9wdt_reg = devm_request_and_ioremap(&dev->dev, res);
- if (!txx9wdt_reg) {
- ret = -EBUSY;
+ txx9wdt_reg = devm_ioremap_resource(&dev->dev, res);
+ if (IS_ERR(txx9wdt_reg)) {
+ ret = PTR_ERR(txx9wdt_reg);
goto exit;
}
--
1.8.1.1
--
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