regulator: improved mode error checks

[linux-2.6-omap-h63xx.git] / lib / vsprintf.c

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 6897724ff5df0731e717305afaaca37112ec5897..0fbd0121d91d8eff2e5299650579cd22c6ac9d3e 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -170,6 +170,8 @@ int strict_strtoul(const char *cp, unsigned int base, unsigned long *res)
                return -EINVAL;
 
        val = simple_strtoul(cp, &tail, base);
+       if (tail == cp)
+               return -EINVAL;
        if ((*tail == '\0') ||
                ((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
                *res = val;
@@ -241,6 +243,8 @@ int strict_strtoull(const char *cp, unsigned int base, unsigned long long *res)
                return -EINVAL;
 
        val = simple_strtoull(cp, &tail, base);
+       if (tail == cp)
+               return -EINVAL;
        if ((*tail == '\0') ||
                ((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
                *res = val;
@@ -661,6 +665,9 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width,
  */
 static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field_width, int precision, int flags)
 {
+       if (!ptr)
+               return string(buf, end, "(null)", field_width, precision, flags);
+
        switch (*fmt) {
        case 'F':
                ptr = dereference_function_descriptor(ptr);
@@ -669,6 +676,9 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field
                return symbol_string(buf, end, ptr, field_width, precision, flags);
        case 'R':
                return resource_string(buf, end, ptr, field_width, precision, flags);
+       case 'm':
+               flags |= SPECIAL;
+               /* Fallthrough */
        case 'M':
                return mac_address_string(buf, end, ptr, field_width, precision, flags);
        case 'i':