Messages in this thread Patch in this message | | | From | kys@linuxonh ... | Subject | [PATCH 2/4] Drivers: hv: vmbus: Fix the issue with freeing up hv_ctl_table_hdr | Date | Sat, 28 Jul 2018 21:58:46 +0000 |
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From: Sunil Muthuswamy <sunilmut@microsoft.com>
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@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> --- 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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