From: Fushuai Wang <[email protected]> Use copy_from_user_nul() instead of copy_from_user() to simplify the code.
No functional change. Signed-off-by: Fushuai Wang <[email protected]> --- kernel/trace/trace.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index baec63134ab6..b6ffd006fcf9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -11266,10 +11266,9 @@ ssize_t trace_parse_run_command(struct file *file, const char __user *buffer, if (size >= WRITE_BUFSIZE) size = WRITE_BUFSIZE - 1; - if (copy_from_user(kbuf, buffer + done, size)) + if (copy_from_user_nul(kbuf, buffer + done, size)) return -EFAULT; - kbuf[size] = '\0'; buf = kbuf; do { tmp = strchr(buf, '\n'); -- 2.36.1
