[PATCH 4.18 050/168] ibmvnic: Include missing return code checks in reset function

From: Greg Kroah-Hartman
Date: Mon Oct 08 2018 - 14:47:55 EST


4.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Thomas Falcon <tlfalcon@xxxxxxxxxxxxxxxxxx>

[ Upstream commit f611a5b4a51fa36a0aa792be474f5d6aacaef7e3 ]

Check the return codes of these functions and halt reset
in case of failure. The driver will remain in a dormant state
until the next reset event, when device initialization will be
re-attempted.

Signed-off-by: Thomas Falcon <tlfalcon@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/ibm/ibmvnic.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1841,11 +1841,17 @@ static int do_reset(struct ibmvnic_adapt
adapter->map_id = 1;
release_rx_pools(adapter);
release_tx_pools(adapter);
- init_rx_pools(netdev);
- init_tx_pools(netdev);
+ rc = init_rx_pools(netdev);
+ if (rc)
+ return rc;
+ rc = init_tx_pools(netdev);
+ if (rc)
+ return rc;

release_napi(adapter);
- init_napi(adapter);
+ rc = init_napi(adapter);
+ if (rc)
+ return rc;
} else {
rc = reset_tx_pools(adapter);
if (rc)