[PATCH AUTOSEL for 4.9 009/293] MIPS: kprobes: flush_insn_slot should flush only if probe initialised

From: Marcin Nowakowski [ Upstream commit 698b851073ddf5a894910d63ca04605e0473414e ] When ftrace is used with kprobes, it is possible for a kprobe to contain an invalid location (ie. only initialised to 0 and not to a specific location in the code). Trying to

[PATCH AUTOSEL for 4.9 009/293] MIPS: kprobes: flush_insn_slot should flush only if probe initialised

From: Marcin Nowakowski [ Upstream commit 698b851073ddf5a894910d63ca04605e0473414e ] When ftrace is used with kprobes, it is possible for a kprobe to contain an invalid location (ie. only initialised to 0 and not to a specific location in the code). Trying to perform a cache flush on such