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lib/vsprintf.c: fix interaction of kasprintf() and vsnprintf() when using %pV

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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>
This commit is contained in:
Jan Beulich 2011-05-24 17:13:18 -07:00 committed by Linus Torvalds
parent 746a2a838d
commit d9be9b90d6
1 changed files with 1 additions and 1 deletions
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lib/vsprintf.c
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@ -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':