diff --git a/drivers/mtd/parsers/qcomsmempart.c b/drivers/mtd/parsers/qcomsmempart.c
index d4fdc46a0073..1591aea48b28 100644
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -143,9 +143,9 @@ static int parse_qcomsmem_part(struct mtd_info *mtd,
 			*c = tolower(*c);
 
 		parts[j].name = name;
-		parts[j].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
+		parts[j].offset = (u64)le32_to_cpu(pentry->offset) * mtd->erasesize;
 		parts[j].mask_flags = pentry->attr;
-		parts[j].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+		parts[j].size = (u64)le32_to_cpu(pentry->length) * mtd->erasesize;
 		pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
 			 i, pentry->name, le32_to_cpu(pentry->offset),
 			 le32_to_cpu(pentry->length), pentry->attr);