[PATCH -next] stm class: dummy_stm: fix error return code in dummy_stm_init()

[Wei Yongjun]

Fix to return error code -ENOMEM from the error handling case instead
of 0(ret can be overwritted to 0 in for loop).

Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/hwtracing/stm/dummy_stm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/stm/dummy_stm.c 
b/drivers/hwtracing/stm/dummy_stm.c
index 38528ffdc0b3..36d32e7afb35 100644
--- a/drivers/hwtracing/stm/dummy_stm.c
+++ b/drivers/hwtracing/stm/dummy_stm.c
@@ -68,7 +68,7 @@ static int dummy_stm_link(struct stm_data *data, unsigned int 
master,
 
 static int dummy_stm_init(void)
 {
-       int i, ret = -ENOMEM;
+       int i, ret;
 
        if (nr_dummies < 0 || nr_dummies > DUMMY_STM_MAX)
                return -EINVAL;
@@ -80,8 +80,10 @@ static int dummy_stm_init(void)
 
        for (i = 0; i < nr_dummies; i++) {
                dummy_stm[i].name = kasprintf(GFP_KERNEL, "dummy_stm.%d", i);
-               if (!dummy_stm[i].name)
+               if (!dummy_stm[i].name) {
+                       ret = -ENOMEM;
                        goto fail_unregister;
+               }
 
                dummy_stm[i].sw_start           = master_min;
                dummy_stm[i].sw_end             = master_max;