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Fix malloc size (Win32)
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@ -626,7 +626,7 @@ enum sp_return sp_open(struct sp_port *port, enum sp_mode flags)
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COMSTAT status;
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/* Prefix port name with '\\.\' to work with ports above COM9. */
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if (!(escaped_port_name = malloc(strlen(port->name + 5))))
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if (!(escaped_port_name = malloc(strlen(port->name) + 5)))
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RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed");
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sprintf(escaped_port_name, "\\\\.\\%s", port->name);
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