diff options
Diffstat (limited to 'sys/dev/vmware/vmxnet3/if_vmx.c')
| -rw-r--r-- | sys/dev/vmware/vmxnet3/if_vmx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/vmware/vmxnet3/if_vmx.c b/sys/dev/vmware/vmxnet3/if_vmx.c index fdcad0dd4bba..62b5f313a137 100644 --- a/sys/dev/vmware/vmxnet3/if_vmx.c +++ b/sys/dev/vmware/vmxnet3/if_vmx.c @@ -1429,7 +1429,8 @@ vmxnet3_isc_txd_credits_update(void *vsc, uint16_t txqid, bool clear) return (1); vmxnet3_barrier(sc, VMXNET3_BARRIER_RD); - if (++txc->vxcr_next == txc->vxcr_ndesc) { + MPASS(txc->vxcr_next < txc->vxcr_ndesc); + if (++txc->vxcr_next >= txc->vxcr_ndesc) { txc->vxcr_next = 0; txc->vxcr_gen ^= 1; } |