diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hv/hv.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index e9e1edd75107..77da2d211378 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -371,8 +371,10 @@ void hv_synic_disable_regs(unsigned int cpu) */ simp.simp_enabled = 0; if (ms_hyperv.paravisor_present || hv_root_partition()) { - iounmap(hv_cpu->hyp_synic_message_page); - hv_cpu->hyp_synic_message_page = NULL; + if (hv_cpu->hyp_synic_message_page) { + iounmap(hv_cpu->hyp_synic_message_page); + hv_cpu->hyp_synic_message_page = NULL; + } } else { simp.base_simp_gpa = 0; } @@ -383,8 +385,10 @@ void hv_synic_disable_regs(unsigned int cpu) siefp.siefp_enabled = 0; if (ms_hyperv.paravisor_present || hv_root_partition()) { - iounmap(hv_cpu->hyp_synic_event_page); - hv_cpu->hyp_synic_event_page = NULL; + if (hv_cpu->hyp_synic_event_page) { + iounmap(hv_cpu->hyp_synic_event_page); + hv_cpu->hyp_synic_event_page = NULL; + } } else { siefp.base_siefp_gpa = 0; } |