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| author | Miaoqian Lin <linmq006@gmail.com> | 2021-12-12 06:25:02 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-12-18 08:31:14 -0300 |
| commit | 0a515a06c5ebfa46fee3ac519e418f801e718da4 (patch) | |
| tree | 97a4b68135bba842bb23a4ad27e9701f24153c9a | |
| parent | 9eaa88c7036eda3f6c215f87ca693594cf90559b (diff) | |
| download | lwn-0a515a06c5ebfa46fee3ac519e418f801e718da4.tar.gz lwn-0a515a06c5ebfa46fee3ac519e418f801e718da4.zip | |
perf expr: Fix missing check for return value of hashmap__new()
The hashmap__new() function may return ERR_PTR(-ENOMEM) when malloc()
fails, add IS_ERR() checking for ctx->ids.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211212062504.25841-1-linmq006@gmail.com
[ s/kfree()/free()/ and add missing linux/err.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/expr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index 1d532b9fed29..254601060b39 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -12,6 +12,7 @@ #include "expr-bison.h" #include "expr-flex.h" #include "smt.h" +#include <linux/err.h> #include <linux/kernel.h> #include <linux/zalloc.h> #include <ctype.h> @@ -299,6 +300,10 @@ struct expr_parse_ctx *expr__ctx_new(void) return NULL; ctx->ids = hashmap__new(key_hash, key_equal, NULL); + if (IS_ERR(ctx->ids)) { + free(ctx); + return NULL; + } ctx->runtime = 0; return ctx; |