[PATCHv1 3/5] tests: fs-tests: check return value of functions

[Andy Shevchenko]

chdir() returns negative value in case of error.
fscanf() returns amount of successfully parsed parameters.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko at nokia.com>
---
 tests/fs-tests/lib/tests.c           |    3 ++-
 tests/fs-tests/stress/atoms/pdfrun.c |    5 ++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/fs-tests/lib/tests.c b/tests/fs-tests/lib/tests.c
index 00b94f9..8a6a5f5 100644
--- a/tests/fs-tests/lib/tests.c
+++ b/tests/fs-tests/lib/tests.c
@@ -1236,7 +1236,8 @@ void tests_try_to_clear_dir(const char *dir_name)
 			break;
 		}
 	}
-	chdir(buf);
+	if (chdir(buf) < 0)
+		perror("chdir");
 	closedir(dir);
 }
 
diff --git a/tests/fs-tests/stress/atoms/pdfrun.c b/tests/fs-tests/stress/atoms/pdfrun.c
index 3536580..46c70e1 100644
--- a/tests/fs-tests/stress/atoms/pdfrun.c
+++ b/tests/fs-tests/stress/atoms/pdfrun.c
@@ -40,8 +40,11 @@ void adjust_size(void)
 
 	total_memory = 0;
 	f = fopen("/proc/meminfo", "r");
-	fscanf(f, "%s %lu", dummy, &total_memory);
+	if (fscanf(f, "%s %lu", dummy, &total_memory) != 2)
+		perror("fscanf error");
 	fclose(f);
+
+
 	if (total_memory > 0 && tests_size_parameter > total_memory / 2)
 		tests_size_parameter = total_memory / 2;
 }
-- 
1.6.3.3