selftests/bpf: test_xsk: Initialize bitmap before use

bitmap is used before being initialized.

Initialize it to zero before using it.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Link: https://lore.kernel.org/r/20251031-xsk-v7-2-39fe486593a3@bootlin.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
1 file changed