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perf tools: Fix memory leak when synthesizing thread records

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Checking default guest machine should be done before allocating event
structures otherwise it'll leak memory.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Joe Mario <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Namhyung Kim 2014-03-17 10:45:49 +09:00 • committed by Arnaldo Carvalho de Melo
commit 574799bfdb
1 changed files with 3 additions and 3 deletions
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6
tools/perf/util/event.c
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@ -446,6 +446,9 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
union perf_event *comm_event, *mmap_event, *fork_event;
int err = -1;
if (machine__is_default_guest(machine))
return 0;
comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
goto out;
@ -458,9 +461,6 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
if (fork_event == NULL)
goto out_free_mmap;
if (machine__is_default_guest(machine))
return 0;
snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir);
proc = opendir(proc_path);