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From: Julia Lawall on 10 Mar 2010 16:20
From: Julia Lawall <julia(a)diku.dk>

kasprintf combines kmalloc and sprintf, and takes care of the size
calculation itself.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression a,flag;
expression list args;
statement S;
@@

a =
- \(kmalloc\|kzalloc\)(...,flag)
+ kasprintf(flag,args)
<... when != a
if (a == NULL || ...) S
...>
- sprintf(a,args);
// </smpl>

Signed-off-by: Julia Lawall <julia(a)diku.dk>

---
arch/x86/pci/acpi.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff -u -p a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -198,10 +198,9 @@ get_current_resources(struct acpi_device
if (!info.res)
goto res_alloc_fail;

- info.name = kmalloc(16, GFP_KERNEL);
+ info.name = kasprintf(GFP_KERNEL, "PCI Bus %04x:%02x", domain, busnum);
if (!info.name)
goto name_alloc_fail;
- sprintf(info.name, "PCI Bus %04x:%02x", domain, busnum);

info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
--
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Prev: more PCMCIA updates for 2.6.34 (including ioctl deprecation)
Next: [PATCH 2/6] drivers/mtd: Use kasprintf