[PATCH rdma-next 2/3] RDMA/core: Free unpublished port statistics after initial-read failure

[Leon Romanovsky <leon@kernel.org>]

From: Leon Romanovsky <leonro@nvidia.com>

An initial port counter read can fail after allocating its statistics
buffer and wrapper. Free these both allocations.

Fixes: 467f432a521a ("RDMA/core: Split port and device counter sysfs attributes")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/core/sysfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 69df8b703cbd..4cd861b5d953 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -996,8 +996,8 @@ static int setup_hw_port_stats(struct ib_port *port,
 					    data->stats->num_counters);
 	if (ret != data->stats->num_counters) {
 		if (WARN_ON(ret >= 0))
-			return -EINVAL;
-		return ret;
+			ret = -EINVAL;
+		goto err_free_data;
 	}
 
 	data->stats->timestamp = jiffies;
@@ -1031,6 +1031,11 @@ static int setup_hw_port_stats(struct ib_port *port,
 
 	port->hw_stats_data = data;
 	return 0;
+
+err_free_data:
+	rdma_free_hw_stats_struct(data->stats);
+	kfree(data);
+	return ret;
 }
 
 struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev,

-- 
2.55.0