1 files changed, 4 insertions, 4 deletions

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 0967771d8f7f..e3bf4e0f10b5 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1739,6 +1739,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
  * 'h', 'l', or 'L' for integer fields
  * 'z' support added 23/7/1999 S.H.
  * 'z' changed to 'Z' --davidm 1/25/99
+ * 'Z' changed to 'z' --adobriyan 2017-01-25
  * 't' added for ptrdiff_t
  *
  * @fmt: the format string
@@ -1838,7 +1839,7 @@ qualifier:
         /* get the conversion qualifier */
         qualifier = 0;
         if (*fmt == 'h' || _tolower(*fmt) == 'l' ||
-            _tolower(*fmt) == 'z' || *fmt == 't') {
+            *fmt == 'z' || *fmt == 't') {
                 qualifier = *fmt++;
                 if (unlikely(qualifier == *fmt)) {
                         if (qualifier == 'l') {
@@ -1907,7 +1908,7 @@ qualifier:
         else if (qualifier == 'l') {
                 BUILD_BUG_ON(FORMAT_TYPE_ULONG + SIGN != FORMAT_TYPE_LONG);
                 spec->type = FORMAT_TYPE_ULONG + (spec->flags & SIGN);
-        } else if (_tolower(qualifier) == 'z') {
+        } else if (qualifier == 'z') {
                 spec->type = FORMAT_TYPE_SIZE_T;
         } else if (qualifier == 't') {
                 spec->type = FORMAT_TYPE_PTRDIFF;
@@ -2657,7 +2658,7 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                 /* get conversion qualifier */
                 qualifier = -1;
                 if (*fmt == 'h' || _tolower(*fmt) == 'l' ||
-                    _tolower(*fmt) == 'z') {
+                    *fmt == 'z') {
                         qualifier = *fmt++;
                         if (unlikely(qualifier == *fmt)) {
                                 if (qualifier == 'h') {
@@ -2851,7 +2852,6 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                         else
                                 *va_arg(args, unsigned long long *) = val.u;
                         break;
-                case 'Z':
                 case 'z':
                         *va_arg(args, size_t *) = val.u;
                         break;