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| author | Shannon Nelson <shannon.nelson@amd.com> | 2023-05-02 11:35:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-17 11:50:18 +0200 |
| commit | c177dd465f5c1e5f242cdb9258826c591c257e9a (patch) | |
| tree | 734b56bfd9b5284f8ed96b5c2abdb602de0713a3 /drivers | |
| parent | da81af0ef8092ecacd87fac3229c29e2e0ce39fd (diff) | |
| download | linux-c177dd465f5c1e5f242cdb9258826c591c257e9a.tar.gz linux-c177dd465f5c1e5f242cdb9258826c591c257e9a.tar.bz2 linux-c177dd465f5c1e5f242cdb9258826c591c257e9a.zip | |
ionic: catch failure from devlink_alloc
[ Upstream commit 4a54903ff68ddb33b6463c94b4eb37fc584ef760 ]
Add a check for NULL on the alloc return. If devlink_alloc() fails and
we try to use devlink_priv() on the NULL return, the kernel gets very
unhappy and panics. With this fix, the driver load will still fail,
but at least it won't panic the kernel.
Fixes: df69ba43217d ("ionic: Add basic framework for IONIC Network device driver")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_devlink.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c index c7d0e195d176..5c06decc868c 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c @@ -65,6 +65,8 @@ struct ionic *ionic_devlink_alloc(struct device *dev) struct devlink *dl; dl = devlink_alloc(&ionic_dl_ops, sizeof(struct ionic), dev); + if (!dl) + return NULL; return devlink_priv(dl); } |