ip6tnl/sit: drop packet if ECN present with not-ECT

[karo-tx-linux.git] / lib / vsprintf.c

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 9287e2549936e8952ace9ca50c6b488ad54fe102..39c99fea7c0386f5cb12cfe814085d182d9c4db9 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -2017,7 +2017,7 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
        s16 field_width;
        bool is_sign;
 
-       while (*fmt && *str) {
+       while (*fmt) {
                /* skip any white space in format */
                /* white space in format matchs any amount of
                 * white space, including none, in the input.
@@ -2042,6 +2042,8 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                 * advance both strings to next white space
                 */
                if (*fmt == '*') {
+                       if (!*str)
+                               break;
                        while (!isspace(*fmt) && *fmt != '%' && *fmt)
                                fmt++;
                        while (!isspace(*str) && *str)
@@ -2070,7 +2072,17 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                        }
                }
 
-               if (!*fmt || !*str)
+               if (!*fmt)
+                       break;
+
+               if (*fmt == 'n') {
+                       /* return number of characters read so far */
+                       *va_arg(args, int *) = str - buf;
+                       ++fmt;
+                       continue;
+               }
+
+               if (!*str)
                        break;
 
                base = 10;
@@ -2103,13 +2115,6 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                        num++;
                }
                continue;
-               case 'n':
-                       /* return number of characters read so far */
-               {
-                       int *i = (int *)va_arg(args, int*);
-                       *i = str - buf;
-               }
-               continue;
                case 'o':
                        base = 8;
                        break;
@@ -2210,16 +2215,6 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
                str = next;
        }
 
-       /*
-        * Now we've come all the way through so either the input string or the
-        * format ended. In the former case, there can be a %n at the current
-        * position in the format that needs to be filled.
-        */
-       if (*fmt == '%' && *(fmt + 1) == 'n') {
-               int *p = (int *)va_arg(args, int *);
-               *p = str - buf;
-       }
-
        return num;
 }
 EXPORT_SYMBOL(vsscanf);