Commit f0a30dca authored by Ravi Bangoria's avatar Ravi Bangoria Committed by Arnaldo Carvalho de Melo

perf probe: Fix concat_probe_trace_events

'*ntevs' contains number of elements present in 'tevs' array. If there
are no elements in array, 'tevs2' can be directly assigned to 'tevs'
without allocating more space. So the condition should be  '*ntevs == 0'
not  'ntevs == 0'.
Signed-off-by: default avatarRavi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 42bba263 ("perf probe: Allow wildcard for cached events")
Link: http://lkml.kernel.org/r/20170308065908.4128-1-ravi.bangoria@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent efc9c056
...@@ -3048,7 +3048,7 @@ concat_probe_trace_events(struct probe_trace_event **tevs, int *ntevs, ...@@ -3048,7 +3048,7 @@ concat_probe_trace_events(struct probe_trace_event **tevs, int *ntevs,
struct probe_trace_event *new_tevs; struct probe_trace_event *new_tevs;
int ret = 0; int ret = 0;
if (ntevs == 0) { if (*ntevs == 0) {
*tevs = *tevs2; *tevs = *tevs2;
*ntevs = ntevs2; *ntevs = ntevs2;
*tevs2 = NULL; *tevs2 = NULL;
......
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