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Diffstat (limited to 'fs/xattr.c')
-rw-r--r--fs/xattr.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 3f9c64bea15..a9db2255799 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;
}