Cai Li 82acb5fc22 clk: fix a panic error caused by accessing NULL pointer ...

[ Upstream commit 975b820b6836b6b6c42fb84cd2e772e2b41bca67 ]

In some cases the clock parent would be set NULL when doing re-parent,
it will cause a NULL pointer accessing if clk_set trace event is
enabled.

This patch sets the parent as "none" if the input parameter is NULL.

Fixes: dfc202ead312 (clk: Add tracepoints for hardware operations)
Signed-off-by: Cai Li <cai.li@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-25 11:05:48 +01:00

..

events

clk: fix a panic error caused by accessing NULL pointer

2018-02-25 11:05:48 +01:00

define_trace.h

tracing: Introduce TRACE_EVENT_FN_COND macro

2015-12-23 14:27:21 -05:00

perf.h

tracing: Use outer () on __get_str() definition

2016-07-15 15:50:58 -04:00

syscall.h

tracing: Rename ftrace_event_{call,class} to trace_event_{call,class}

2015-05-13 14:06:10 -04:00

trace_events.h

tracing: Use outer () on __get_str() definition

2016-07-15 15:50:58 -04:00