9ns: Fix TF lookup code error cases
authorBarret Rhoden <brho@cs.berkeley.edu>
Fri, 27 Jul 2018 18:05:43 +0000 (14:05 -0400)
committerBarret Rhoden <brho@cs.berkeley.edu>
Mon, 30 Jul 2018 20:05:46 +0000 (16:05 -0400)
commit3f6ee5e9eefe22c4577976c97f1a72c2f3f8f60b
tree3c2e9739c925143cddface73b7e79ad85b06a7ed
parent068317f1255de676fbec659d8abcacd2166683fa
9ns: Fix TF lookup code error cases

I didn't run into these at runtime, but the old code looked like it would
panic if we'd ever have a lookup op throw, since 'next' was NULL.

Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>
kern/src/ns/tree_file.c