IB/mlx5: Check the correct variable in error handling code

The code accidentally checks "event_sub" instead of "event_sub->eventfd".

Fixes: 759738537142 ("IB/mlx5: Enable subscription for device events over DEVX")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190807123236.GA11452@mwanda
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index ec4370f..2d1b3d9 100644 (file)
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -2026,7 +2026,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)(
                        event_sub->eventfd =
                                eventfd_ctx_fdget(redirect_fd);
 
-                       if (IS_ERR(event_sub)) {
+                       if (IS_ERR(event_sub->eventfd)) {
                                err = PTR_ERR(event_sub->eventfd);
                                event_sub->eventfd = NULL;
                                goto err;