Commit d5dadb6c authored Jun 07, 2017 by Daniel Rosenberg

ANDROID: sdcardfs: d_splice_alias can return error values



We must check that d_splice_alias was successful before using its
output.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 62390017
Change-Id: Ifda0a052fb3f67e35c635a4e5e907876c5400978

parent 4fce2666

fs/sdcardfs/lookup.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -199,6 +199,7 @@ static struct dentry __sdcardfs_interpose(struct dentry dentry,

		ret_dentry = d_splice_alias(inode, dentry);
		dentry = ret_dentry ?: dentry;
		if (!IS_ERR(dentry))
		update_derived_permission_lock(dentry);
		out:
		return ret_dentry;