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kunit: debugfs: Fix unchecked dereference in debugfs_print_results() 

[ Upstream commit 34dfd5bb2e5507e69d9b6d6c90f546600c7a4977 ]

Move the call to kunit_suite_has_succeeded() after the check that
the kunit_suite pointer is valid.

This was found by smatch:

 lib/kunit/debugfs.c:66 debugfs_print_results() warn: variable
 dereferenced before check 'suite' (see line 63)

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 38289a26e1 ("kunit: fix debugfs code to use enum kunit_status, not bool")
Reviewed-by: Rae Moar <rmoar@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Richard Fitzgerald 2023-10-30 10:47:58 +00:00 committed by Greg Kroah-Hartman
parent b841208b7e
commit 030a1147ed
1 changed files with 3 additions and 1 deletions
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4
lib/kunit/debugfs.c
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@ -52,12 +52,14 @@ static void debugfs_print_result(struct seq_file *seq,
static int debugfs_print_results(struct seq_file *seq, void *v)
{
struct kunit_suite *suite = (struct kunit_suite *)seq->private;
enum kunit_status success = kunit_suite_has_succeeded(suite);
enum kunit_status success;
struct kunit_case *test_case;
if (!suite)
return 0;
success = kunit_suite_has_succeeded(suite);
/* Print KTAP header so the debugfs log can be parsed as valid KTAP. */
seq_puts(seq, "KTAP version 1\n");
seq_puts(seq, "1..1\n");