fprobe: Fix module reference count leak on error in register_fprobe()

fprobe: Fix module reference count leak on error in register_fprobe()

In register_fprobe(), get_ips_from_filter() resolves target function
addresses and increments module reference counts via try_module_get() for
symbols in kernel modules. If get_ips_from_filter() fails on the second
pass and returns an error, register_fprobe() returned directly without
releasing module references acquired up to that point.

Fix this by ensuring the cleanup loop executing module_put() runs even when
get_ips_from_filter() returns a negative error.

Link: https://lore.kernel.org/all/178528125360.101985.4144133640239273153.stgit@devnote2/
Fixes: d24fa977eec5 ("tracing: fprobe: Fix to lock module while registering fprobe")
Assisted-by: Antigravity:gemini-3.6-flash
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>