passt-repair: Suppress false positive cppcheck negativeIndex warningHEADmaster

By the time we reach buf[n - 1] = '\0', n < 0 and n < sizeof(*ev)
are already handled above, so the index is always positive.  Add a
cppcheck-suppress annotation to silence the false positive.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
[sbrivio: Add unmatchedSuppression for compatibility]
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/passt-repair.c b/passt-repair.c
index 80a3908..3958c3a 100644
--- a/passt-repair.c
+++ b/passt-repair.c
@@ -95,6 +95,7 @@ static int wait_for_socket(struct sockaddr_un *a, const char *dir,
 			continue;
 		}
 
+		/* cppcheck-suppress [negativeIndex, unmatchedSuppression] */
 		buf[n - 1] = '\0';
 		for (p = buf; p < buf + n; p += sizeof(*ev) + ev->len) {
 			ev = (const struct inotify_event *)p;