mem: guard rt_smem_setname() against a NULL name

rt_smem_setname() dereferenced name[index] without checking for
NULL first. Some callers legitimately pass an unnamed allocation
through with a NULL name, which crashed instead of just leaving
the trace field blank.

Treat a NULL name the same as an empty string, so the existing
fill-with-spaces loop below handles it without duplicating that
logic.

Fixes #9793

Signed-off-by: yi chen <[email protected]>

0 files changed, 0 insertions, 0 deletions