wslua: don't crash if disable_lua = true in init.lua
in wslua_init(), our lua instance L is set to NULL if disable_lua is true in init.lua make sure that we leave wslua_init() in this case if we don't, we crash in lua_pop(L,1); with L==NULL Program received signal SIGSEGV, Segmentation fault. 0x00007fffefb41a73 in lua_settop () from /usr/lib/x86_64-linux-gnu/liblua5.1.so.0 (gdb) bt #0 0x00007fffefb41a73 in lua_settop () from /usr/lib/x86_64-linux-gnu/liblua5.1.so.0 #1 0x00007ffff4fb50e4 in wslua_init (cb=cb@entry=0x516f40 <splash_update(register_action_e, char const*, void*)>, client_data=client_data@entry=0x0) at init_wslua.c:900 [...] Bug:12196 Change-Id: Ic338c4edcb897c0eaa9b6755bbb6c9991ec6ed02 Reviewed-on: https://code.wireshark.org/review/14228 Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
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@ -896,6 +896,7 @@ void wslua_init(register_cb cb, gpointer client_data) {
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lua_close(L);
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L = NULL;
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first_time = FALSE;
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return;
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}
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lua_pop(L,1); /* pop the getglobal result */
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