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authorYunfeng Ye <[email protected]>2019-10-16 16:38:45 +0800
committerArnaldo Carvalho de Melo <[email protected]>2019-10-16 10:08:32 -0300
commit1abecfcaa7bba21c9985e0136fa49836164dd8fd (patch)
treec0c3442c82bb1a4c6a80d2a8e9388b290b77fe6f
parent5eca1379c0eb06e3908179665230a86d19bd2df7 (diff)
perf kmem: Fix memory leak in compact_gfp_flags()
The memory @orig_flags is allocated by strdup(), it is freed on the normal path, but leak to free on the error path. Fix this by adding free(orig_flags) on the error path. Fixes: 0e11115644b3 ("perf kmem: Print gfp flags in human readable string") Signed-off-by: Yunfeng Ye <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Feilong Lin <[email protected]> Cc: Hu Shiyuan <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-rw-r--r--tools/perf/builtin-kmem.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1e61e353f579..9661671cc26e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -691,6 +691,7 @@ static char *compact_gfp_flags(char *gfp_flags)
new = realloc(new_flags, len + strlen(cpt) + 2);
if (new == NULL) {
free(new_flags);
+ free(orig_flags);
return NULL;
}