winmm_output: handle empty string case when parsing device id
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@ -81,7 +81,7 @@ get_device_id(const char *device_name)
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/* check for device id */
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/* check for device id */
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char *endptr;
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char *endptr;
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UINT id = strtoul(device_name, &endptr, 0);
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UINT id = strtoul(device_name, &endptr, 0);
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if (*endptr == 0)
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if (endptr > device_name && *endptr == 0)
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return id;
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return id;
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/* check for device name */
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/* check for device name */
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