[PATCH 05/17] x86: tsc_timer: Correct overflow in __udelay()

At present long delays such as msleep(2000) can cause an overflow in this function. There is no need for this, since it already uses a 64-bit int.

Add a cast to correct this.

Signed-off-by: Simon Glass sjg@chromium.org ---

drivers/timer/tsc_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/timer/tsc_timer.c b/drivers/timer/tsc_timer.c index 706d52b830a..7d0fc66cc75 100644 --- a/drivers/timer/tsc_timer.c +++ b/drivers/timer/tsc_timer.c @@ -372,7 +372,7 @@ void __udelay(unsigned long usec) u64 now = get_ticks(); u64 stop;

- stop = now + usec * get_tbclk_mhz(); + stop = now + (u64)usec * get_tbclk_mhz();

while ((int64_t)(stop - get_ticks()) > 0) #if defined(CONFIG_QEMU) && defined(CONFIG_SMP)