platform/x86: ISST: unlock on error path in tpmi_sst_init()

Call mutex_unlock(&isst_tpmi_dev_lock) before returning on this
error path.

Fixes: d805456c712f ("platform/x86: ISST: Enumerate TPMI SST and create framework")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/dcdebbb7-7de6-4d04-8e7a-43d5ca043484@kili.mountain
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
index cdb56a1..664d2ee 100644 (file)
--- a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
@@ -1399,8 +1399,10 @@ int tpmi_sst_init(void)
        isst_common.sst_inst = kcalloc(topology_max_packages(),
                                       sizeof(*isst_common.sst_inst),
                                       GFP_KERNEL);
-       if (!isst_common.sst_inst)
-               return -ENOMEM;
+       if (!isst_common.sst_inst) {
+               ret = -ENOMEM;
+               goto init_done;
+       }
 
        memset(&cb, 0, sizeof(cb));
        cb.cmd_size = sizeof(struct isst_if_io_reg);