buildroot/package/optee-client/0002-libteeacl-use-realloc-instead-of-reallocarray.patch

From dde6306458331371be5df15e3ca953697d2463ef Mon Sep 17 00:00:00 2001
From: Eero Aaltonen <eero.aaltonen@vaisala.com>
Date: Thu, 2 Feb 2023 17:22:29 +0200
Subject: [PATCH] libteeacl: use realloc() instead of reallocarray()

Use realloc() instead of reallocarray(), since uClibc apparently does
not implement reallocarray().

Fixes: https://github.com/OP-TEE/optee_client/issues/339

Signed-off-by: Eero Aaltonen <eero.aaltonen@vaisala.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

[Retrieved from:
https://github.com/OP-TEE/optee_client/commit/dde6306458331371be5df15e3ca953697d2463ef]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 libteeacl/src/group.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libteeacl/src/group.c b/libteeacl/src/group.c
index 10965dd0..bd165a11 100644
--- a/libteeacl/src/group.c
+++ b/libteeacl/src/group.c
@@ -72,7 +72,8 @@ enum rv_groupmember teeacl_user_is_member_of(const char *user, gid_t group)
 	if (ret == -1) {
 		p_groups = groups;
 
-		groups = reallocarray(groups, grouplistsize, sizeof(gid_t));
+		/* we use realloc, since uClibc does not implement reallocarray */
+		groups = realloc(groups, grouplistsize * sizeof(gid_t));
 		if (!groups) {
 			free(p_groups);
 			return E_MEMORY;