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x86/PCI: Convert release_resource to release_region/release_mem_region

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Request_region should be used with release_region, not release_resource.

The local variables region and region2 are dropped and the calls to
release_resource are replaced with calls to release_region, using the first
two arguments of the corresponding calls to request_region.

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

// <smpl>
@@
expression x,E;
@@
(
*x = request_region(...)
|
*x = request_mem_region(...)
)
... when != release_region(x)
    when != x = E
* release_resource(x);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Julia Lawall 2011-02-13 13:12:11 +01:00 committed by Jesse Barnes
parent 83d74e036b
commit 0e8ede5351
1 changed files with 6 additions and 11 deletions
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17
arch/x86/pci/direct.c
View File

@ -280,12 +280,9 @@ void __init pci_direct_init(int type)
int __init pci_direct_probe(void)
{
struct resource *region, *region2;
if ((pci_probe & PCI_PROBE_CONF1) == 0)
goto type2;
region = request_region(0xCF8, 8, "PCI conf1");
if (!region)
if (!request_region(0xCF8, 8, "PCI conf1"))
goto type2;
if (pci_check_type1()) {
@ -293,16 +290,14 @@ int __init pci_direct_probe(void)
port_cf9_safe = true;
return 1;
}
release_resource(region);
release_region(0xCF8, 8);
type2:
if ((pci_probe & PCI_PROBE_CONF2) == 0)
return 0;
region = request_region(0xCF8, 4, "PCI conf2");
if (!region)
if (!request_region(0xCF8, 4, "PCI conf2"))
return 0;
region2 = request_region(0xC000, 0x1000, "PCI conf2");
if (!region2)
if (!request_region(0xC000, 0x1000, "PCI conf2"))
goto fail2;
if (pci_check_type2()) {
@ -311,8 +306,8 @@ int __init pci_direct_probe(void)
return 2;
}
release_resource(region2);
release_region(0xC000, 0x1000);
fail2:
release_resource(region);
release_region(0xCF8, 4);
return 0;
}