proton: Fix null deref
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proton
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proton
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@ -34,6 +34,10 @@ def upgrade_pfx(old_ver):
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return
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log("Upgrading prefix from " + str(old_ver) + " to " + CURRENT_PREFIX_VERSION + " (" + os.environ["STEAM_COMPAT_DATA_PATH"] + ")")
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if old_ver == None:
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return
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old_proton_ver, old_prefix_ver = old_ver.split('-')
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if old_proton_ver == "3.7" and old_prefix_ver == "1":
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