aboutsummaryrefslogtreecommitdiff
path: root/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_ksym.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/trace/trace_ksym.c b/kernel/trace/trace_ksym.c
index 11935b53a6c..9f040e42f51 100644
--- a/kernel/trace/trace_ksym.c
+++ b/kernel/trace/trace_ksym.c
@@ -339,14 +339,20 @@ static ssize_t ksym_trace_filter_write(struct file *file,
ksym_hbp_handler, true);
if (IS_ERR(entry->ksym_hbp))
entry->ksym_hbp = NULL;
- if (!entry->ksym_hbp)
+
+ /* modified without problem */
+ if (entry->ksym_hbp) {
+ ret = 0;
goto out;
+ }
+ } else {
+ ret = 0;
}
+ /* Error or "symbol:---" case: drop it */
ksym_filter_entry_count--;
hlist_del_rcu(&(entry->ksym_hlist));
synchronize_rcu();
kfree(entry);
- ret = 0;
goto out;
} else {
/* Check for malformed request: (4) */