vsprintf: use WARN_ON_ONCE
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d320c18..73a14b8 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1092,13 +1092,8 @@
/* Reject out-of-range values early. Large positive sizes are
used for unknown buffer sizes. */
- if (unlikely((int) size < 0)) {
- /* There can be only one.. */
- static char warn = 1;
- WARN_ON(warn);
- warn = 0;
+ if (WARN_ON_ONCE((int) size < 0))
return 0;
- }
str = buf;
end = buf + size;
@@ -1544,13 +1539,8 @@
struct printf_spec spec = {0};
- if (unlikely((int) size < 0)) {
- /* There can be only one.. */
- static char warn = 1;
- WARN_ON(warn);
- warn = 0;
+ if (WARN_ON_ONCE((int) size < 0))
return 0;
- }
str = buf;
end = buf + size;