From d9be9b90d6dc5e712ca5d6109691a8de753ce7f1 Mon Sep 17 00:00:00 2001 From: Jan Beulich <JBeulich@novell.com> Date: Tue, 24 May 2011 17:13:18 -0700 Subject: [PATCH] lib/vsprintf.c: fix interaction of kasprintf() and vsnprintf() when using %pV Otherwise, the warning at the top of vsnprintf() gets triggered by kvasprintf()'s first invocation (with NULL buffer and zero size) of vsnprintf(). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- lib/vsprintf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 1d659d7bb0f8..c11205688fb4 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -898,7 +898,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, case 'U': return uuid_string(buf, end, ptr, spec, fmt); case 'V': - return buf + vsnprintf(buf, end - buf, + return buf + vsnprintf(buf, end > buf ? end - buf : 0, ((struct va_format *)ptr)->fmt, *(((struct va_format *)ptr)->va)); case 'K': -- 2.20.1