[MTD] Don't oops when the RedBoot partition table is empty

This fixes a regression with the RedBoot parsing code introduced by
commit 0b47d654089c5ce3f2ea26a4485db9bcead1e515

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 035cd9b0cc08..5a31f490368e 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -122,7 +122,7 @@ static int parse_redboot_partitions(struct mtd_info *master,
                                 }
                         }
                         break;
-                } else {
+                } else if (buf[i].size != -1) {
                         /* re-calculate of real numslots */
                         numslots = buf[i].size / sizeof(struct fis_image_desc);
                 }