Add null check to SDL_LoadWAV_RW to avoid crashes #311
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Native SDL 1.2 and 2.0 both handle SDL_LoadWAV(null,...), SDL_LoadWAV("",...) and SDL_LoadWAV(nonexistent_file,...)
by returning NULL and setting an error; this check resores that
behavior.
Fixes libsdl-org#310
sezero
reviewed
Aug 6, 2023
It is an out parameter and callers might be tempted to free it no matter what the main return value says.
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Native SDL 1.2 and 2.0 both handle SDL_LoadWAV(null,...), SDL_LoadWAV("",...) and SDL_LoadWAV(nonexistent_file,...) by returning NULL and setting an error; this check resores that behavior.
Fixes #310