From 2babd200454eff922ba2cae23a20db2308ec8059 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=BD=D0=B0=D0=B1?= <nabijaczleweli@nabijaczleweli.xyz>
Date: Mon, 3 May 2021 12:30:16 +0200
Subject: [PATCH] libzfs: zfs_asprintf(): don't return undefined pointer
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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11993
---
 lib/libzfs/libzfs_util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/libzfs/libzfs_util.c b/lib/libzfs/libzfs_util.c
index 8038f7fa343e..7840e3590a57 100644
--- a/lib/libzfs/libzfs_util.c
+++ b/lib/libzfs/libzfs_util.c
@@ -782,8 +782,10 @@ zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...)
 
 	va_end(ap);
 
-	if (err < 0)
+	if (err < 0) {
 		(void) no_memory(hdl);
+		ret = NULL;
+	}
 
 	return (ret);
 }