efi_loader: size of media device path node represenation

In the format specifier we want to specify the maximum width
in case an ending \0 is missing.

So slen must be used as precision and not as field width.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index 62771338f0383a9850dc11de7f2d2d6a6247a04f..98617cf163b2be46ca557a5ed5dd0233e3a5a098 100644 (file)
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -153,7 +153,7 @@ static char *dp_media(char *s, struct efi_device_path *dp)
                struct efi_device_path_file_path *fp =
                        (struct efi_device_path_file_path *)dp;
                int slen = (dp->length - sizeof(*dp)) / 2;
-               s += sprintf(s, "/%-*ls", slen, fp->str);
+               s += sprintf(s, "/%-.*ls", slen, fp->str);
                break;
        }
        default: