Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.17 053/101] enic: do not overwrite error code | Date | Fri, 20 Jul 2018 14:13:59 +0200 |
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4.17-stable review patch. If anyone has any objections, please let me know.
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From: Govindarajulu Varadarajan <gvaradar@cisco.com>
[ Upstream commit 56f772279a762984f6e9ebbf24a7c829faba5712 ]
In failure path, we overwrite err to what vnic_rq_disable() returns. In case it returns 0, enic_open() returns success in case of error.
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Fixes: e8588e268509 ("enic: enable rq before updating rq descriptors") Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/cisco/enic/enic_main.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -1920,7 +1920,7 @@ static int enic_open(struct net_device * { struct enic *enic = netdev_priv(netdev); unsigned int i; - int err; + int err, ret; err = enic_request_intr(enic); if (err) { @@ -1977,10 +1977,9 @@ static int enic_open(struct net_device * err_out_free_rq: for (i = 0; i < enic->rq_count; i++) { - err = vnic_rq_disable(&enic->rq[i]); - if (err) - return err; - vnic_rq_clean(&enic->rq[i], enic_free_rq_buf); + ret = vnic_rq_disable(&enic->rq[i]); + if (!ret) + vnic_rq_clean(&enic->rq[i], enic_free_rq_buf); } enic_dev_notify_unset(enic); err_out_free_intr:
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