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-rw-r--r--lib/vsprintf.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index f569feb7662e..5d6f0718b6d9 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -511,7 +511,14 @@ static char *string(char *buf, char *end, char *s, int field_width, int precisio
return buf;
}
-static char *pointer(char *buf, char *end, void *ptr, int field_width, int precision, int flags)
+/*
+ * Show a '%p' thing. A kernel extension is that the '%p' is followed
+ * by an extra set of alphanumeric characters that are extended format
+ * specifiers.
+ *
+ * Right now don't actually handle any such, but we will..
+ */
+static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field_width, int precision, int flags)
{
flags |= SMALL;
if (field_width == -1) {
@@ -663,7 +670,12 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
continue;
case 'p':
- str = pointer(str, end, va_arg(args, void *), field_width, precision, flags);
+ str = pointer(fmt+1, str, end,
+ va_arg(args, void *),
+ field_width, precision, flags);
+ /* Skip all alphanumeric pointer suffixes */
+ while (isalnum(fmt[1]))
+ fmt++;
continue;
case 'n':