[dpdk-dev] [PATCH] pipeline: fix deallocate null pointer

[Min Hu (Connor)]

From: HongBo Zheng <zhenghongbo3 at huawei.com>

Fix deallocate null pointer in instruction_config, while
pointer 'data' or 'instr' may be null.

Fixes: a1711f948dbf ("pipeline: add SWX Rx and extract instructions")
Cc: stable at dpdk.org

Signed-off-by: HongBo Zheng <zhenghongbo3 at huawei.com>
Signed-off-by: Min Hu (Connor) <humin29 at huawei.com>
---
 lib/librte_pipeline/rte_swx_pipeline.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pipeline/rte_swx_pipeline.c b/lib/librte_pipeline/rte_swx_pipeline.c
index 4455d91..6084635 100644
--- a/lib/librte_pipeline/rte_swx_pipeline.c
+++ b/lib/librte_pipeline/rte_swx_pipeline.c
@@ -8015,8 +8015,10 @@ instruction_config(struct rte_swx_pipeline *p,
 	return 0;
 
 error:
-	free(data);
-	free(instr);
+	if (data)
+		free(data);
+	if (instr)
+		free(instr);
 	return err;
 }
 
-- 
2.7.4