ext4 crypto: replace some BUG_ON()'s with error checks
Buggy (or hostile) userspace should not be able to cause the kernel to
crash.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
diff --git a/fs/ext4/crypto_policy.c b/fs/ext4/crypto_policy.c
index a640ec2..ad05069 100644
--- a/fs/ext4/crypto_policy.c
+++ b/fs/ext4/crypto_policy.c
@@ -150,7 +150,8 @@
if ((parent == NULL) || (child == NULL)) {
pr_err("parent %p child %p\n", parent, child);
- BUG_ON(1);
+ WARN_ON(1); /* Should never happen */
+ return 0;
}
/* no restrictions if the parent directory is not encrypted */
if (!ext4_encrypted_inode(parent))