Fix a BUG_ON from 2009. Even if it looks "unreachable" (I didn't really look), lets make sure by removing it, doing pr_err and return -EINVAL instead.

cc: stable@vger.kernel.org Signed-off-by: Jim Cromie jim.cromie@gmail.com --- lib/dynamic_debug.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index c78f335fa981..f2c5e7910bb1 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -302,7 +302,11 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords) } else { for (end = buf; *end && !isspace(*end); end++) ; - BUG_ON(end == buf); + if (end == buf) { + pr_err("parse err after word:%d=%s\n", nwords, + nwords ? words[nwords - 1] : "<none>"); + return -EINVAL; + } }

/* `buf' is start of word, `end' is one past its end */