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ecryptfs: Remove unnecessary variable initialization

Removes unneeded variable initialization in ecryptfs_read_metadata(). Also adds
a small comment to help explain metadata reading logic.

[tyhicks@canonical.com: Pulled out of for-stable patch and wrote commit msg]
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
This commit is contained in:
Tim Gardner 2012-01-12 16:31:55 +01:00 committed by Tyler Hicks
parent 30373dc0c8
commit bb4503615d

View File

@ -1590,8 +1590,8 @@ int ecryptfs_read_and_validate_xattr_region(struct dentry *dentry,
*/
int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
{
int rc = 0;
char *page_virt = NULL;
int rc;
char *page_virt;
struct inode *ecryptfs_inode = ecryptfs_dentry->d_inode;
struct ecryptfs_crypt_stat *crypt_stat =
&ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;
@ -1616,6 +1616,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
ecryptfs_dentry,
ECRYPTFS_VALIDATE_HEADER_SIZE);
if (rc) {
/* metadata is not in the file header, so try xattrs */
memset(page_virt, 0, PAGE_CACHE_SIZE);
rc = ecryptfs_read_xattr_region(page_virt, ecryptfs_inode);
if (rc) {