diff options
| -rw-r--r-- | lib/vsprintf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 8378c136b6e1..c150d3dafff4 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1504,7 +1504,7 @@ EXPORT_SYMBOL(snprintf); * @...: Arguments for the format string * * The return value is the number of characters written into @buf not including - * the trailing '\0'. If @size is <= 0 the function returns 0. + * the trailing '\0'. If @size is == 0 the function returns 0. */ int scnprintf(char *buf, size_t size, const char *fmt, ...) @@ -1516,7 +1516,11 @@ int scnprintf(char *buf, size_t size, const char *fmt, ...) i = vsnprintf(buf, size, fmt, args); va_end(args); - return (i >= size) ? (size - 1) : i; + if (likely(i < size)) + return i; + if (size != 0) + return size - 1; + return 0; } EXPORT_SYMBOL(scnprintf); |