diff options
Diffstat (limited to 'fs/xattr.c')
| -rw-r--r-- | fs/xattr.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index 3f9c64bea151..a9db22557998 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -74,8 +74,7 @@ setxattr(struct dentry *d, char __user *name, void __user *value, } out: up(&d->d_inode->i_sem); - if (kvalue) - kfree(kvalue); + kfree(kvalue); return error; } @@ -143,7 +142,7 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size) if (size) { if (size > XATTR_SIZE_MAX) size = XATTR_SIZE_MAX; - kvalue = kmalloc(size, GFP_KERNEL); + kvalue = kzalloc(size, GFP_KERNEL); if (!kvalue) return -ENOMEM; } @@ -154,11 +153,15 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size) error = -EOPNOTSUPP; if (d->d_inode->i_op && d->d_inode->i_op->getxattr) error = d->d_inode->i_op->getxattr(d, kname, kvalue, size); - else if (!strncmp(kname, XATTR_SECURITY_PREFIX, - sizeof XATTR_SECURITY_PREFIX - 1)) { + + if (!strncmp(kname, XATTR_SECURITY_PREFIX, + sizeof XATTR_SECURITY_PREFIX - 1)) { const char *suffix = kname + sizeof XATTR_SECURITY_PREFIX - 1; - error = security_inode_getsecurity(d->d_inode, suffix, kvalue, - size); + int rv = security_inode_getsecurity(d->d_inode, suffix, kvalue, + size, error); + /* Security module active: overwrite error value */ + if (rv != -EOPNOTSUPP) + error = rv; } if (error > 0) { if (size && copy_to_user(value, kvalue, error)) @@ -169,8 +172,7 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size) error = -E2BIG; } out: - if (kvalue) - kfree(kvalue); + kfree(kvalue); return error; } @@ -255,8 +257,7 @@ listxattr(struct dentry *d, char __user *list, size_t size) error = -E2BIG; } out: - if (klist) - kfree(klist); + kfree(klist); return error; } |