1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/mtd/tests/mtd_test.c b/drivers/mtd/tests/mtd_test.c
index 111ee46a7428..34736bbcc07b 100644
--- a/drivers/mtd/tests/mtd_test.c
+++ b/drivers/mtd/tests/mtd_test.c
@@ -10,7 +10,7 @@ int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum)
 {
         int err;
         struct erase_info ei;
-        loff_t addr = ebnum * mtd->erasesize;
+        loff_t addr = (loff_t)ebnum * mtd->erasesize;
 
         memset(&ei, 0, sizeof(struct erase_info));
         ei.mtd  = mtd;
@@ -33,7 +33,7 @@ int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum)
 static int is_block_bad(struct mtd_info *mtd, unsigned int ebnum)
 {
         int ret;
-        loff_t addr = ebnum * mtd->erasesize;
+        loff_t addr = (loff_t)ebnum * mtd->erasesize;
 
         ret = mtd_block_isbad(mtd, addr);
         if (ret)