git: 5a18515b3143 - main - sh: silence sanitizer

[Piotr Pawel Stefaniak]

The branch main has been updated by pstef:

URL: https://cgit.FreeBSD.org/src/commit/?id=5a18515b3143792135881ce64e2380115c4744c1

commit 5a18515b3143792135881ce64e2380115c4744c1
Author:     Piotr Pawel Stefaniak <pstef at FreeBSD.org>
AuthorDate: 2021-04-01 05:31:03 +0000
Commit:     Piotr Pawel Stefaniak <pstef at FreeBSD.org>
CommitDate: 2021-04-01 05:31:03 +0000

    sh: silence sanitizer
    
    Don't add 0 to a null pointer.
    Reviewed by:    jilles
---
 bin/sh/memalloc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bin/sh/memalloc.c b/bin/sh/memalloc.c
index a2191771386d..7ea31af050e5 100644
--- a/bin/sh/memalloc.c
+++ b/bin/sh/memalloc.c
@@ -227,7 +227,10 @@ popstackmark(struct stackmark *mark)
 	}
 	stacknxt = mark->stacknxt;
 	stacknleft = mark->stacknleft;
-	sstrend = stacknxt + stacknleft;
+	if (stacknleft != 0)
+		sstrend = stacknxt + stacknleft;
+	else
+		sstrend = stacknxt;
 	INTON;
 }