From ee7ef7780868b6c40745bde8758921e01958af9d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=B4me=20Chilliet?= <come.chilliet@nextcloud.com>
Date: Mon, 25 Oct 2021 14:33:19 +0200
Subject: [PATCH] Fix warning about passing null to substr_count
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Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
---
 lib/private/Share20/DefaultShareProvider.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/private/Share20/DefaultShareProvider.php b/lib/private/Share20/DefaultShareProvider.php
index 85655c4e379..a6a8bdb9698 100644
--- a/lib/private/Share20/DefaultShareProvider.php
+++ b/lib/private/Share20/DefaultShareProvider.php
@@ -1363,7 +1363,7 @@ class DefaultShareProvider implements IShareProvider {
 		$best = [];
 		$bestDepth = 0;
 		foreach ($shares as $id => $share) {
-			$depth = substr_count($share['file_target'], '/');
+			$depth = substr_count(($share['file_target'] ?? ''), '/');
 			if (empty($best) || $depth < $bestDepth) {
 				$bestDepth = $depth;
 				$best = [