From: Sunil Muthuswamy <sunilmut@xxxxxxxxxxxxx>
The check to free the Hyper-V control table header was reversed. This
fixes it.
Fixes: 81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
Signed-off-by: Sunil Muthuswamy <sunilmut@xxxxxxxxxxxxx>
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
---
drivers/hv/vmbus_drv.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index a7f33c1f42c5..5e946b1be54c 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1176,11 +1176,8 @@ static int vmbus_bus_init(void)
bus_unregister(&hv_bus);
free_page((unsigned long)hv_panic_page);
- if (!hv_ctl_table_hdr) {
- unregister_sysctl_table(hv_ctl_table_hdr);
- hv_ctl_table_hdr = NULL;
- }
-
+ unregister_sysctl_table(hv_ctl_table_hdr);
+ hv_ctl_table_hdr = NULL;
return ret;
}
@@ -1891,11 +1888,8 @@ static void __exit vmbus_exit(void)
}
free_page((unsigned long)hv_panic_page);
- if (!hv_ctl_table_hdr) {
- unregister_sysctl_table(hv_ctl_table_hdr);
- hv_ctl_table_hdr = NULL;
- }
-
+ unregister_sysctl_table(hv_ctl_table_hdr);
+ hv_ctl_table_hdr = NULL;
bus_unregister(&hv_bus);
cpuhp_remove_state(hyperv_cpuhp_online);
--
2.17.1
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