vsprintf: Handle NULL with %pU
At present a NULL pointer passed to printf for a %pU argument will cause
U-Boot to access memory at 0. Fix this by adding a check, and print
"(null)" instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
[agraf: s/(null)/<NULL>/]
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 8b1b29f..914fbd3 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -407,7 +407,10 @@
break;
}
- uuid_bin_to_str(addr, uuid, str_format);
+ if (addr)
+ uuid_bin_to_str(addr, uuid, str_format);
+ else
+ strcpy(uuid, "<NULL>");
return string(buf, end, uuid, field_width, precision, flags);
}