[edk2-devel] [PATCH 2/3] ArmPkg: Fix the calculation of the timer period in GenericWatchdogDxe

[Rebecca Cran via groups.io]

Fix the calculation of the timer period in GenericWatchdogDxe: we need
to multiply before dividing to keep the values as integers.

Signed-off-by: Rebecca Cran <rebe...@os.amperecomputing.com>
---
 ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.c 
b/ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.c
index 05df101d5f4b..8f02f38c64e3 100644
--- a/ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.c
+++ b/ArmPkg/Drivers/GenericWatchdogDxe/GenericWatchdogDxe.c
@@ -119,7 +119,7 @@ WatchdogInterruptHandler (
   // the timer period plus 1.
   //
   if (mWatchdogNotify != NULL) {
-    TimerPeriod = ((TIME_UNITS_PER_SECOND / mTimerFrequencyHz) * 
mNumTimerTicks);
+    TimerPeriod = ((TIME_UNITS_PER_SECOND * mNumTimerTicks) / 
mTimerFrequencyHz);
     mWatchdogNotify (TimerPeriod + 1);
   }
 
@@ -260,7 +260,7 @@ WatchdogGetTimerPeriod (
     return EFI_INVALID_PARAMETER;
   }
 
-  *TimerPeriod = ((TIME_UNITS_PER_SECOND / mTimerFrequencyHz) * 
mNumTimerTicks);
+  *TimerPeriod = ((TIME_UNITS_PER_SECOND * mNumTimerTicks) / 
mTimerFrequencyHz);
 
   return EFI_SUCCESS;
 }
-- 
2.34.1



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