[LTP] [PATCH v5 1/7] tst_kvercmp: Factor out error handling

[Petr Vorel]

Error check was already on 2 places (and possibly more will be added in
the future).

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Changes v1->v2:
* Use proper name for function (underscore at the end)

 lib/tst_kvercmp.c | 23 +++++++++++++++++------
 lib/tst_test.c    |  6 +-----
 2 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/lib/tst_kvercmp.c b/lib/tst_kvercmp.c
index 9e1a511aff..27b156c8bc 100644
--- a/lib/tst_kvercmp.c
+++ b/lib/tst_kvercmp.c
@@ -45,7 +45,7 @@ static char *parse_digit(const char *str, int *d)
 	return end;
 }
 
-int tst_parse_kver(const char *str_kver, int *v1, int *v2, int *v3)
+static int tst_parse_kver_(const char *str_kver, int *v1, int *v2, int *v3)
 {
 	const char *str = str_kver;
 
@@ -81,17 +81,28 @@ int tst_parse_kver(const char *str_kver, int *v1, int *v2, int *v3)
 	return 0;
 }
 
-int tst_kvcmp(const char *cur_kver, int r1, int r2, int r3)
+int tst_parse_kver(const char *str_kver, int *v1, int *v2, int *v3)
 {
-	int a1, a2, a3;
-	int testver, currver;
+	int rc;
+
+	rc = tst_parse_kver_(str_kver, v1, v2, v3);
 
-	if (tst_parse_kver(cur_kver, &a1, &a2, &a3)) {
+	if (rc) {
 		tst_resm(TWARN,
 			 "Invalid kernel version %s, expected %%d.%%d.%%d",
-		         cur_kver);
+		         str_kver);
 	}
 
+	return rc;
+}
+
+int tst_kvcmp(const char *cur_kver, int r1, int r2, int r3)
+{
+	int a1, a2, a3;
+	int testver, currver;
+
+	tst_parse_kver(cur_kver, &a1, &a2, &a3);
+
 	testver = (r1 << 20) + (r2 << 10) + r3;
 	currver = (a1 << 20) + (a2 << 10) + a3;
 
diff --git a/lib/tst_test.c b/lib/tst_test.c
index 9c5f2617fe..a147521e9d 100644
--- a/lib/tst_test.c
+++ b/lib/tst_test.c
@@ -1067,11 +1067,7 @@ static bool check_kver(const char *min_kver, const int brk_nosupp)
 	char *msg;
 	int v1, v2, v3;
 
-	if (tst_parse_kver(min_kver, &v1, &v2, &v3)) {
-		tst_res(TWARN,
-			"Invalid kernel version %s, expected %%d.%%d.%%d",
-			min_kver);
-	}
+	tst_parse_kver(min_kver, &v1, &v2, &v3);
 
 	if (tst_kvercmp(v1, v2, v3) < 0) {
 		msg = "The test requires kernel %s or newer";
-- 
2.55.0