From: Chunyan Zhang <[email protected]> The device unregister path uses wrong master index range when it tries to free the allocated masters, it should, as does the rest of the stm class code, use real master IDs.
This patch fixes the device unregister path to use real master IDs to avoid memory leaks after unloading the stm driver. Signed-off-by: Chunyan Zhang <[email protected]> [[email protected]: re-wrote the commit message] Signed-off-by: Alexander Shishkin <[email protected]> --- drivers/hwtracing/stm/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index cdec240bd6..79cca94bfb 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -690,7 +690,7 @@ void stm_unregister_device(struct stm_data *stm_data) stp_policy_unbind(stm->policy); mutex_unlock(&stm->policy_mutex); - for (i = 0; i < stm->sw_nmasters; i++) + for (i = stm->data->sw_start; i <= stm->data->sw_end; i++) stp_master_free(stm, i); device_unregister(&stm->dev); -- 2.7.0
