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authorDarius Augulis <augulis.darius@gmail.com>2009-03-31 14:52:54 +0300
committerBen Dooks <ben-linux@fluff.org>2009-04-07 10:18:33 +0100
commit309c18d2cd7fbef9a30634c031ddfa4fecd22848 (patch)
treef14bb27e8d1cb621fb52d0d68c060f7c713efb64 /drivers/i2c
parent18dc83a6ea483941fb34293c6805a85bbcf0f718 (diff)
downloadlinux-309c18d2cd7fbef9a30634c031ddfa4fecd22848.tar.bz2
i2c: imx: Add missing request_mem_region in probe()
Signed-off-by: Darius Augulis <augulis.darius@gmail.com> [ben-linux@fluff.org: fix minor patch fault in remove] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-imx.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 22cf200ecb3e..433d3486de04 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -479,6 +479,11 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
goto fail1;
}
+ if (!request_mem_region(res->start, res_size, DRIVER_NAME)) {
+ ret = -EBUSY;
+ goto fail2;
+ }
+
/* Setup i2c_imx driver structure */
strcpy(i2c_imx->adapter.name, pdev->name);
i2c_imx->adapter.owner = THIS_MODULE;
@@ -494,7 +499,7 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
if (IS_ERR(i2c_imx->clk)) {
ret = PTR_ERR(i2c_imx->clk);
dev_err(&pdev->dev, "can't get I2C clock\n");
- goto fail2;
+ goto fail3;
}
clk_enable(i2c_imx->clk);
@@ -502,7 +507,7 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
ret = request_irq(i2c_imx->irq, i2c_imx_isr, 0, pdev->name, i2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", i2c_imx->irq);
- goto fail3;
+ goto fail4;
}
/* Init queue */
@@ -525,7 +530,7 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
ret = i2c_add_numbered_adapter(&i2c_imx->adapter);
if (ret < 0) {
dev_err(&pdev->dev, "registration failed\n");
- goto fail4;
+ goto fail5;
}
/* Set up platform driver data */
@@ -542,11 +547,13 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
return 0; /* Return OK */
-fail4:
+fail5:
free_irq(i2c_imx->irq, i2c_imx);
-fail3:
+fail4:
clk_disable(i2c_imx->clk);
clk_put(i2c_imx->clk);
+fail3:
+ release_mem_region(i2c_imx->res->start, resource_size(res));
fail2:
kfree(i2c_imx);
fail1:
@@ -584,6 +591,7 @@ static int __exit i2c_imx_remove(struct platform_device *pdev)
clk_disable(i2c_imx->clk);
clk_put(i2c_imx->clk);
+ release_mem_region(i2c_imx->res->start, resource_size(i2c_imx->res));
iounmap(i2c_imx->base);
kfree(i2c_imx);
return 0;