diff options
| -rw-r--r-- | drivers/staging/fsl_dpa_offload/dpa_classifier.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/staging/fsl_dpa_offload/dpa_classifier.c b/drivers/staging/fsl_dpa_offload/dpa_classifier.c index f94e2bd..49dad23 100644 --- a/drivers/staging/fsl_dpa_offload/dpa_classifier.c +++ b/drivers/staging/fsl_dpa_offload/dpa_classifier.c @@ -7975,9 +7975,16 @@ int dpa_classif_mcast_remove_member(int grpd, int md) mutex_lock(&pgroup->access); release_desc_table(&mcast_grp_array); - if ((md <= 0) || (md > pgroup->group_params.max_members)) { + if (pgroup->num_members <= 1) { mutex_unlock(&pgroup->access); - log_err("Invalid member descriptor (grpd=%d).\n", md); + log_err("Last member in group cannot be removed (md=%d).\n", + md); + return -EINVAL; + } + + if ((md < 0) || (md > pgroup->group_params.max_members)) { + mutex_unlock(&pgroup->access); + log_err("Invalid member descriptor (md=%d).\n", md); return -EINVAL; } |