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perf expr: Make expr__parse() return -1 on error

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To match the error value of the expr__find_other function, so all
exported expr functions return the same values:
0 on success, -1 on error.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200228093616.67125-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-02-28 10:36:16 +01:00 committed by Arnaldo Carvalho de Melo
parent 0f9b1e124b
commit d942815a76
2 changed files with 3 additions and 3 deletions
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4
tools/perf/tests/expr.c
View File

@ -45,11 +45,11 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
p = "FOO/0";
ret = expr__parse(&val, &ctx, p);
TEST_ASSERT_VAL("division by zero", ret == 1);
TEST_ASSERT_VAL("division by zero", ret == -1);
p = "BAR/";
ret = expr__parse(&val, &ctx, p);
TEST_ASSERT_VAL("missing operand", ret == 1);
TEST_ASSERT_VAL("missing operand", ret == -1);
TEST_ASSERT_VAL("find other",
expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);

2
tools/perf/util/expr.c
View File

@ -54,7 +54,7 @@ __expr__parse(double *val, struct parse_ctx *ctx, const char *expr,
int expr__parse(double *final_val, struct parse_ctx *ctx, const char *expr)
{
return __expr__parse(final_val, ctx, expr, EXPR_PARSE);
return __expr__parse(final_val, ctx, expr, EXPR_PARSE) ? -1 : 0;
}
static bool