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authorPeter Wu <[email protected]>2014-12-11 13:51:18 +0100
committerJiri Kosina <[email protected]>2014-12-11 23:10:00 +0100
commit1430ee73b566a30bc210501d1e0e99c519707f1e (patch)
treeb16d64b16d3f19f4675bc9787719795d1601d96c /tools/perf/scripts/python/Perf-Trace-Util/lib
parent02cc097e62d51bf6e5cb4209ca90d9bf68e358b5 (diff)
HID: logitech-hidpp: check name retrieval return code
hidpp_devicenametype_get_device_name() may return a negative value on protocol errors (for example, when the device is powered off). Explicitly check this condition to avoid a long-running loop. (0 cannot be returned as __name_length - index > 0, but check for it anyway as it would otherwise result in an infinite loop.) Signed-off-by: Peter Wu <[email protected]> Reviewed-by: Benjamin Tissoires <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
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