1 files changed, 5 insertions, 1 deletions

diff --git a/arch/riscv/lib/delay.c b/arch/riscv/lib/delay.c
index 87ff89e88f2c..f51c9a03bca1 100644
--- a/arch/riscv/lib/delay.c
+++ b/arch/riscv/lib/delay.c
@@ -81,9 +81,13 @@ EXPORT_SYMBOL(__delay);
 void udelay(unsigned long usecs)
 {
         u64 ucycles = (u64)usecs * lpj_fine * UDELAY_MULT;
+        u64 n;
 
         if (unlikely(usecs > MAX_UDELAY_US)) {
-                __delay((u64)usecs * riscv_timebase / 1000000ULL);
+                n = (u64)usecs * riscv_timebase;
+                do_div(n, 1000000);
+
+                __delay(n);
                 return;
         }