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asus-laptop: fix a memory leak in asus_laptop_get_info error path 

The callers of write_acpi_int_ret() pass ACPI_ALLOCATE_BUFFER,
the caller must kfree the returned buffer if AE_OK is returned.

This patch adds a missing kfree(buffer.pointer) before return -ENOMEM
if kstrdup fail.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Axel Lin 2010-06-29 11:09:47 +08:00 committed by Matthew Garrett
parent 1492616a43
commit d8eca1105f
1 changed files with 3 additions and 1 deletions
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4
drivers/platform/x86/asus-laptop.c
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@ -1397,8 +1397,10 @@ static int asus_laptop_get_info(struct asus_laptop *asus)
}
}
asus->name = kstrdup(string, GFP_KERNEL);
if (!asus->name)
if (!asus->name) {
kfree(buffer.pointer);
return -ENOMEM;
}
if (*string)
pr_notice(" %s model detected\n", string);