Hi, Dan
On 01/15/15 at 12:21pm, Dan Carpenter wrote:
> The "> 0" here should ">= 0" so we free map_entries[0].
>
> Fixes: 926172d46038 ('efi: Export EFI runtime memory mapping to sysfs')
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
> index 018c29a..87b8e3b 100644
> --- a/drivers/firmware/efi/runtime-map.c
> +++ b/drivers/firmware/efi/runtime-map.c
> @@ -191,7 +191,7 @@ int __init efi_runtime_map_init(struct kobject *efi_kobj)
>
> return 0;
> out_add_entry:
> - for (j = i - 1; j > 0; j--) {
> + for (j = i - 1; j >= 0; j--) {
> entry = *(map_entries + j);
> kobject_put(&entry->kobj);
> }
see below code, as for an invalid entry with i = 0, it will be not
assigned to *(map_entries + i)
---
for (i = 0; i < nr_efi_runtime_map; i++) {
entry = add_sysfs_runtime_map_entry(efi_kobj, i);
if (IS_ERR(entry)) {
ret = PTR_ERR(entry);
goto out_add_entry;
}
*(map_entries + i) = entry;
}
return 0;
out_add_entry:
for (j = i - 1; j > 0; j--) {
entry = *(map_entries + j);
[snip]
---
Thanks
Dave
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