| Message ID | 20220106135905.81923-4-ioana.ciornei@nxp.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | d1a9b84183e818c6c3540a454d6ad278b56718b2 |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | dpaa2-eth: small cleanup | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/subject_prefix | success | Link |
| netdev/cover_letter | success | Series has a cover letter |
| netdev/patch_count | success | Link |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/cc_maintainers | success | CCed 4 of 4 maintainers |
| netdev/build_clang | success | Errors and warnings before: 0 this patch: 0 |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 22 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index d039457928b0..9b5512b4f15d 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -394,7 +394,8 @@ static int dpaa2_switch_dellink(struct ethsw_core *ethsw, u16 vid) for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { ppriv_local = ethsw->ports[i]; - ppriv_local->vlans[vid] = 0; + if (ppriv_local) + ppriv_local->vlans[vid] = 0; } return 0; @@ -1896,9 +1897,11 @@ static int dpaa2_switch_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid /* Delete VLAN from switch if it is no longer configured on * any port */ - for (i = 0; i < ethsw->sw_attr.num_ifs; i++) - if (ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER) + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + if (ethsw->ports[i] && + ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER) return 0; /* Found a port member in VID */ + } ethsw->vlans[vid] &= ~ETHSW_VLAN_GLOBAL;
Before accessing the port private structure make sure that there is still a non-NULL pointer there. A NULL pointer access can happen when we are on the remove path, some switch ports are unregistered and some are in the process of unregistering. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)