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Merge tag 'v4.9.117' into odroidn2-4.9.y

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This is the 4.9.117 stable release
This commit is contained in:
Mauro (mdrjr) Ribeiro
2018-11-28 17:41:55 +09:00
parent 014f83d329 ddd28fff50
commit 2e4823bd03
142 changed files with 760 additions and 293 deletions
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18
kernel/trace/trace_events_trigger.c
View File

@@ -678,6 +678,8 @@ event_trigger_callback(struct event_command *cmd_ops,
goto out_free;
out_reg:
/* Up the trigger_data count to make sure reg doesn't free it on failure */
event_trigger_init(trigger_ops, trigger_data);
ret = cmd_ops->reg(glob, trigger_ops, trigger_data, file);
/*
* The above returns on success the # of functions enabled,
@@ -685,11 +687,13 @@ event_trigger_callback(struct event_command *cmd_ops,
* Consider no functions a failure too.
*/
if (!ret) {
cmd_ops->unreg(glob, trigger_ops, trigger_data, file);
ret = -ENOENT;
goto out_free;
} else if (ret < 0)
goto out_free;
ret = 0;
} else if (ret > 0)
ret = 0;
/* Down the counter of trigger_data or free it if not used anymore */
event_trigger_free(trigger_ops, trigger_data);
out:
return ret;
@@ -1385,6 +1389,9 @@ int event_enable_trigger_func(struct event_command *cmd_ops,
goto out;
}
/* Up the trigger_data count to make sure nothing frees it on failure */
event_trigger_init(trigger_ops, trigger_data);
if (trigger) {
number = strsep(&trigger, ":");
@@ -1435,6 +1442,7 @@ int event_enable_trigger_func(struct event_command *cmd_ops,
goto out_disable;
/* Just return zero, not the number of enabled functions */
ret = 0;
event_trigger_free(trigger_ops, trigger_data);
out:
return ret;
@@ -1445,7 +1453,7 @@ int event_enable_trigger_func(struct event_command *cmd_ops,
out_free:
if (cmd_ops->set_filter)
cmd_ops->set_filter(NULL, trigger_data, NULL);
kfree(trigger_data);
event_trigger_free(trigger_ops, trigger_data);
kfree(enable_data);
goto out;
}

15
kernel/trace/trace_kprobe.c
View File

@@ -359,11 +359,10 @@ static struct trace_kprobe *find_trace_kprobe(const char *event,
static int
enable_trace_kprobe(struct trace_kprobe *tk, struct trace_event_file *file)
{
struct event_file_link *link = NULL;
int ret = 0;
if (file) {
struct event_file_link *link;
link = kmalloc(sizeof(*link), GFP_KERNEL);
if (!link) {
ret = -ENOMEM;
@@ -383,6 +382,18 @@ enable_trace_kprobe(struct trace_kprobe *tk, struct trace_event_file *file)
else
ret = enable_kprobe(&tk->rp.kp);
}
if (ret) {
if (file) {
/* Notice the if is true on not WARN() */
if (!WARN_ON_ONCE(!link))
list_del_rcu(&link->list);
kfree(link);
tk->tp.flags &= ~TP_FLAG_TRACE;
} else {
tk->tp.flags &= ~TP_FLAG_PROFILE;
}
}
out:
return ret;
}