common/mlx5: fix resource cleaning in device removal

The common remove function call in a loop to remove function for each
driver which have been registered.

If all removes are succeeded, it return 0 without to free the device
which allocated in probe function. Otherwise, it free the device.
In fact we expect exactly the opposite behavior. If all removes are
failed, it returns error without freeing the device which allocated in
probe function. Otherwise, it free the device and return 0.

Replace it with the correct behavior.

Fixes: 8a41f4deccc3 ("common/mlx5: introduce layer for multiple class drivers")
Cc: stable@dpdk.org
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>

diff --git a/drivers/common/mlx5/mlx5_common.c b/drivers/common/mlx5/mlx5_common.c
index 4321cb3..6885bbb 100644 (file)
--- a/drivers/common/mlx5/mlx5_common.c
+++ b/drivers/common/mlx5/mlx5_common.c
@@ -354,7 +354,7 @@ mlx5_common_dev_remove(struct rte_device *eal_dev)
                return -ENODEV;
        /* Matching device found, cleanup and unload drivers. */
        ret = drivers_remove(dev, dev->classes_loaded);
-       if (ret != 0)
+       if (ret == 0)
                dev_release(dev);
        return ret;
 }