Currently ftrace_lookup_symbols iterates only over core symbols,
adding module_kallsyms_on_each_symbol call to check on modules
symbols as well.
Also removing 'args.found == args.cnt' condition, because it's
already checked in kallsyms_callback function.
Also removing 'err < 0' check, because both *kallsyms_on_each_symbol
functions do not return error.
Reported-by: Martynas Pumputis <m@xxxxxxxxx>
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
kernel/trace/ftrace.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 447d2e2a8549..6efdba4666f4 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -8292,17 +8292,18 @@ static int kallsyms_callback(void *data, const char *name,
int ftrace_lookup_symbols(const char **sorted_syms, size_t cnt, unsigned long *addrs)
{
struct kallsyms_data args;
- int err;
+ int found_all;
memset(addrs, 0, sizeof(*addrs) * cnt);
args.addrs = addrs;
args.syms = sorted_syms;
args.cnt = cnt;
args.found = 0;
- err = kallsyms_on_each_symbol(kallsyms_callback, &args);
- if (err < 0)
- return err;
- return args.found == args.cnt ? 0 : -ESRCH;
+ found_all = kallsyms_on_each_symbol(kallsyms_callback, &args);
+ if (found_all)
+ return 0;
+ found_all = module_kallsyms_on_each_symbol(kallsyms_callback, &args);
+ return found_all ? 0 : -ESRCH;
}
#ifdef CONFIG_SYSCTL
--
2.37.3
