From a96857f1aa068da241ad8b234addd76b23d1e594 Mon Sep 17 00:00:00 2001
From: Adeeb Shihadeh <adeebshihadeh@gmail.com>
Date: Sat, 12 Dec 2020 13:55:24 -0800
Subject: [PATCH] fix camerad not exiting cleanly (#2768)

Co-authored-by: Comma Device <device@comma.ai>
---
 selfdrive/common/visionbuf_ion.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/selfdrive/common/visionbuf_ion.c b/selfdrive/common/visionbuf_ion.c
index 9b30483b12..5c26bea6ad 100644
--- a/selfdrive/common/visionbuf_ion.c
+++ b/selfdrive/common/visionbuf_ion.c
@@ -131,7 +131,9 @@ void visionbuf_sync(const VisionBuf* buf, int dir) {
 }
 
 void visionbuf_free(const VisionBuf* buf) {
-  CL_CHECK(clReleaseMemObject(buf->buf_cl));
+  if (buf->buf_cl) {
+    CL_CHECK(clReleaseMemObject(buf->buf_cl));
+  }
   munmap(buf->addr, buf->mmap_len);
   close(buf->fd);
   struct ion_handle_data handle_data = {