1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index d0b6f8f9f297..6abd142b1324 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -1728,6 +1728,10 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd, int csline,
          */
         chip->clk_rate = NSEC_PER_SEC / min_clk_period;
         real_clk_rate = clk_round_rate(nfc->mod_clk, chip->clk_rate);
+        if (real_clk_rate <= 0) {
+                dev_err(nfc->dev, "Unable to round clk %lu\n", chip->clk_rate);
+                return -EINVAL;
+        }
 
         /*
          * ONFI specification 3.1, paragraph 4.15.2 dictates that EDO data