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authorLv Ruyi <lv.ruyi@zte.com.cn>2022-04-13 11:33:02 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-04-14 03:20:15 +0200
commitd73f5d14e0cdd1f39764379250f26163913d7155 (patch)
treedac1f3fb6bb6d660deb865678ac39643ca70f896 /tools/perf/util
parentperf tools: Fix misleading add event PMU debug message (diff)
downloadlinux-d73f5d14e0cdd1f39764379250f26163913d7155.tar.xz
linux-d73f5d14e0cdd1f39764379250f26163913d7155.zip
perf stat: Fix error check return value of hashmap__new(), must use IS_ERR()
hashmap__new() returns ERR_PTR(-ENOMEM) when it fails, so we should use IS_ERR() to check it in error handling path. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220413093302.2538128-1-lv.ruyi@zte.com.cn Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/stat.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index ee6f03481215..817a2de264b4 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
+#include <linux/err.h>
#include <inttypes.h>
#include <math.h>
#include <string.h>
@@ -311,7 +312,7 @@ static int check_per_pkg(struct evsel *counter, struct perf_counts_values *vals,
if (!mask) {
mask = hashmap__new(pkg_id_hash, pkg_id_equal, NULL);
- if (!mask)
+ if (IS_ERR(mask))
return -ENOMEM;
counter->per_pkg_mask = mask;