Commit-ID: d292384152fdd465dba792d555ce5db83e94efa0
Gitweb: http://git.kernel.org/tip/d292384152fdd465dba792d555ce5db83e94efa0
Author: Matt Fleming <matt.fleming@xxxxxxxxx>
AuthorDate: Mon, 22 Oct 2012 15:23:29 +0100
Committer: Matt Fleming <matt.fleming@xxxxxxxxx>
CommitDate: Tue, 30 Oct 2012 10:39:26 +0000
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: Jeremy Kerr <jeremy.kerr@xxxxxxxxxxxxx>
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
---
drivers/firmware/efivars.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 277e426..2c04434 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -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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