Commit d2923841 authored by Matt Fleming's avatar Matt Fleming

efivarfs: Replace magic number with sizeof(attributes)

Seeing "+ 4" littered throughout the functions gets a bit
confusing. Use "sizeof(attributes)" which clearly explains what
quantity we're adding.
Acked-by: default avatarJeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
parent 7253eaba
......@@ -801,7 +801,7 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
if (status != EFI_BUFFER_TOO_SMALL)
return efi_status_to_err(status);
data = kmalloc(datasize + 4, GFP_KERNEL);
data = kmalloc(datasize + sizeof(attributes), GFP_KERNEL);
if (!data)
return -ENOMEM;
......@@ -810,7 +810,7 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
status = efivars->ops->get_variable(var->var.VariableName,
&var->var.VendorGuid,
&attributes, &datasize,
(data + 4));
(data + sizeof(attributes)));
spin_unlock(&efivars->lock);
if (status != EFI_SUCCESS) {
......@@ -818,9 +818,9 @@ static ssize_t efivarfs_file_read(struct file *file, char __user *userbuf,
goto out_free;
}
memcpy(data, &attributes, 4);
memcpy(data, &attributes, sizeof(attributes));
size = simple_read_from_buffer(userbuf, count, ppos,
data, datasize + 4);
data, datasize + sizeof(attributes));
out_free:
kfree(data);
......
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