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path: root/drivers/watchdog/kempld_wdt.c
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-rw-r--r--drivers/watchdog/kempld_wdt.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
index 73c46b3a09ab..2f3b049ea301 100644
--- a/drivers/watchdog/kempld_wdt.c
+++ b/drivers/watchdog/kempld_wdt.c
@@ -140,12 +140,19 @@ static int kempld_wdt_set_stage_timeout(struct kempld_wdt_data *wdt_data,
unsigned int timeout)
{
struct kempld_device_data *pld = wdt_data->pld;
- u32 prescaler = kempld_prescaler[PRESCALER_21];
+ u32 prescaler;
u64 stage_timeout64;
u32 stage_timeout;
u32 remainder;
u8 stage_cfg;
+#if GCC_VERSION < 40400
+ /* work around a bug compiling do_div() */
+ prescaler = READ_ONCE(kempld_prescaler[PRESCALER_21]);
+#else
+ prescaler = kempld_prescaler[PRESCALER_21];
+#endif
+
if (!stage)
return -EINVAL;