PM / Runtime: Fix runtime accounting calculation error

With delta type being int, its value is made zero
for all values of now > 0x80000000.
Hence fixing it.

Signed-off-by: venu byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 6bb3aafa85ede9efe75d41abba500211fc9b262b..18ef87e525faa8ed8ea4a7d5e18d93a1e4acd7a4 100644 (file)
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -29,13 +29,10 @@ static int rpm_suspend(struct device *dev, int rpmflags);
 void update_pm_runtime_accounting(struct device *dev)
 {
        unsigned long now = jiffies;
-       int delta;
+       unsigned long delta;
 
        delta = now - dev->power.accounting_timestamp;
 
-       if (delta < 0)
-               delta = 0;
-
        dev->power.accounting_timestamp = now;
 
        if (dev->power.disable_depth > 0)