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arch/arm/mach-omap1/dma.c: Invert calls to platform_device_put and platform_device_del 

Platform_device_del should be called before platform_device_put, as
platform_device_put can delete the structure.

Additionally, improve the error handling code for the call to ioremap, so
that it calls platform_device_put.

The semantic match that finds this problem is:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2;
@@

*platform_device_put(e1);
... when != e1 = e2
*platform_device_del(e1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Julia Lawall 2011-05-13 18:46:10 +02:00 committed by Tony Lindgren
parent 30ebad9d75
commit 77f7059a32
1 changed files with 6 additions and 5 deletions
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11
arch/arm/mach-omap1/dma.c
View File

@ -284,14 +284,15 @@ static int __init omap1_system_dma_init(void)
dma_base = ioremap(res[0].start, resource_size(&res[0]));
if (!dma_base) {
pr_err("%s: Unable to ioremap\n", __func__);
return -ENODEV;
ret = -ENODEV;
goto exit_device_put;
}
ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
if (ret) {
dev_err(&pdev->dev, "%s: Unable to add resources for %s%d\n",
__func__, pdev->name, pdev->id);
goto exit_device_del;
goto exit_device_put;
}
p = kzalloc(sizeof(struct omap_system_dma_plat_info), GFP_KERNEL);
@ -299,7 +300,7 @@ static int __init omap1_system_dma_init(void)
dev_err(&pdev->dev, "%s: Unable to allocate 'p' for %s\n",
__func__, pdev->name);
ret = -ENOMEM;
goto exit_device_put;
goto exit_device_del;
}
d = kzalloc(sizeof(struct omap_dma_dev_attr), GFP_KERNEL);
@ -380,10 +381,10 @@ static int __init omap1_system_dma_init(void)
kfree(d);
exit_release_p:
kfree(p);
exit_device_put:
platform_device_put(pdev);
exit_device_del:
platform_device_del(pdev);
exit_device_put:
platform_device_put(pdev);
return ret;
}