diff mbox series

[v5,51/52] vdpa/mlx5: replace strerror with reentrant version

Message ID 20241104111037.3632161-52-huangdengdui@huawei.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series replace strerror |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

huangdengdui Nov. 4, 2024, 11:10 a.m. UTC 
The function strerror() is insecure in a multi-thread environment.
This patch uses strerror_r() to replace it.

Signed-off-by: Dengdui Huang <huangdengdui@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
---
 drivers/vdpa/mlx5/mlx5_vdpa_virtq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
index 093cdd08d2..4a07f76a80 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_virtq.c
@@ -20,6 +20,7 @@  mlx5_vdpa_virtq_kick_handler(void *cb_arg)
 {
 	struct mlx5_vdpa_virtq *virtq = cb_arg;
 	struct mlx5_vdpa_priv *priv = virtq->priv;
+	char errmsg[RTE_STRERR_BUFSIZE];
 	uint64_t buf;
 	int nbytes;
 	int retry;
@@ -43,8 +44,10 @@  mlx5_vdpa_virtq_kick_handler(void *cb_arg)
 			    errno == EWOULDBLOCK ||
 			    errno == EAGAIN)
 				continue;
+			if (strerror_r(errno, errmsg, sizeof(errmsg)) != 0)
+				snprintf(errmsg, sizeof(errmsg), "Unknown error %d", errno);
 			DRV_LOG(ERR,  "Failed to read kickfd of virtq %d: %s.",
-				virtq->index, strerror(errno));
+				virtq->index, errmsg);
 		}
 		break;
 	}