Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

[linux.git] / drivers / mtd / nand / sunxi_nand.c

diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index d0b6f8f9f297ab89f355a727c333de1c5a2f7fc8..6abd142b13246f1189e189c03d3ff499665c1b0b 100644 (file)
--- 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