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authorChan Shu Tak, Alex <alexchan@task.com.hk>2019-12-19 14:16:18 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-12 12:21:45 +0100
commit5485d62cf5fd2bfc1a4820d9432f7ba4b44e50fe (patch)
tree5fc7132ec3243347e439def0e7810adc74130987 /kernel/trace
parent7a5f6b322e9d470ef1ab6c39f3dba7dc70716ceb (diff)
llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
[ Upstream commit af1c0e4e00f3cc76cb136ebf2e2c04e8b6446285 ] When a frame with NULL DSAP is received, llc_station_rcv is called. In turn, llc_stat_ev_rx_null_dsap_xid_c is called to check if it is a NULL XID frame. The return statement of llc_stat_ev_rx_null_dsap_xid_c returns 1 when the incoming frame is not a NULL XID frame and 0 otherwise. Hence, a NULL XID response is returned unexpectedly, e.g. when the incoming frame is a NULL TEST command. To fix the error, simply remove the conditional operator. A similar error in llc_stat_ev_rx_null_dsap_test_c is also fixed. Signed-off-by: Chan Shu Tak, Alex <alexchan@task.com.hk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/trace')
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