Commit 572086325ce9 ("Drivers: hv: vmbus: Cleanup synic memory free path")
says "Any memory allocations that succeeded will be freed when the caller
cleans up by calling hv_synic_free()", but if the get_zeroed_page() in
hv_synic_alloc() fails, currently hv_synic_free() is not really called
in vmbus_bus_init(), consequently there will be a memory lead, e.g.
hv_context.hv_numa_map is not freed in the error path. Fix this by
updating the goto lables.
Cc: stable@xxxxxxxxxx
Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
---
drivers/hv/vmbus_drv.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 59eb5fad12e7..c41e6ad0cf64 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1525,7 +1525,7 @@ static int vmbus_bus_init(void)
ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "hyperv/vmbus:online",
hv_synic_init, hv_synic_cleanup);
if (ret < 0)
- goto err_cpuhp;
+ goto err_alloc;
hyperv_cpuhp_online = ret;
ret = vmbus_connect();
@@ -1577,9 +1577,8 @@ static int vmbus_bus_init(void)
err_connect:
cpuhp_remove_state(hyperv_cpuhp_online);
-err_cpuhp:
- hv_synic_free();
err_alloc:
+ hv_synic_free();
if (vmbus_irq == -1) {
hv_remove_vmbus_handler();
} else {
--
2.25.1
