[PATCH v3] selftests/seccomp: Fix indentation and rebase error logging patch

[Sameeksha Sankpal <sameekshasankpal@gmail.com>]

Rebase the error logging enhancement for get_proc_stat() against the upstream seccomp tree with proper indentation formatting.

Suggested-by: Kees Cook <kees@kernel.org>
Signed-off-by: Sameeksha Sankpal <sameekshasankpal@gmail.com>
---
v1 -> v2:
- Used TH_LOG instead of printf for error logging  
- Moved variable declaration to the top of the function
- Applied review suggestion by Kees Cook

v2 -> v3:
- Rebased against upstream seccomp tree (was previously against v1)
- Fixed indentation to use tabs instead of spaces
- Used scripts/checkpatch.pl to check the patch for common errors
- Removed the blank line beforeS S-o-b added in v2

 tools/testing/selftests/seccomp/seccomp_bpf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 61acbd45ffaa..dbd7e705a2af 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -4508,9 +4508,14 @@ static char get_proc_stat(struct __test_metadata *_metadata, pid_t pid)
 	char proc_path[100] = {0};
 	char status;
 	char *line;
+	int rc;
 
 	snprintf(proc_path, sizeof(proc_path), "/proc/%d/stat", pid);
 	ASSERT_EQ(get_nth(_metadata, proc_path, 3, &line), 1);
+	rc = get_nth(_metadata, proc_path, 3, &line);
+	ASSERT_EQ(rc, 1) {
+		TH_LOG("user_notification_fifo: failed to read stat for PID %d (rc=%d)", pid, rc);
+	}
 
 	status = *line;
 	free(line);
-- 
2.43.0