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authorJulia Lawall <julia@diku.dk>2010-05-15 23:16:21 +0200
committerLen Brown <len.brown@intel.com>2010-05-20 01:02:55 -0400
commitd6bd535d88429b4804d6d917ab4f586306f9a855 (patch)
tree07fbd4f3d4ca3079204f73ecbb89542e9d9c966b /drivers/acpi/ec.c
parentaeb834d95e771499cb0492d127aec3246d1595c8 (diff)
downloadlinux-d6bd535d88429b4804d6d917ab4f586306f9a855.tar.bz2
ACPI: EC: Use kmemdup
Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
-rw-r--r--drivers/acpi/ec.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index f2234db85da0..e61d4f8e62a5 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1027,10 +1027,9 @@ int __init acpi_ec_ecdt_probe(void)
/* Don't trust ECDT, which comes from ASUSTek */
if (!EC_FLAGS_VALIDATE_ECDT)
goto install;
- saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL);
+ saved_ec = kmemdup(boot_ec, sizeof(struct acpi_ec), GFP_KERNEL);
if (!saved_ec)
return -ENOMEM;
- memcpy(saved_ec, boot_ec, sizeof(struct acpi_ec));
/* fall through */
}