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    Subject[PATCH] media: atmel: atmel-isi: fix timeout value for stop streaming
    Date
    From: Alexandre Kroupski <alexandre.kroupski@ingenico.com>

    In case of sensor malfunction, stop streaming timeout takes much longer
    than expected.
    This is due to conversion of time to jiffies: milliseconds multiplied
    with HZ (ticks/second) gives out a value of jiffies with 10^3 greater.
    We need to also divide by 10^3 to obtain the right jiffies value.
    In other words FRAME_INTERVAL_MILLI_SEC must be in seconds in order to multiply
    by HZ and get the right jiffies value to add to the current jiffies for the
    timeout expire time.

    Fixes: 195ebc43bf76 ("[media] V4L: at91: add Atmel Image Sensor Interface (ISI) support")
    Signed-off-by: Alexandre Kroupski <alexandre.kroupski@ingenico.com>
    Reviewed-by: Eugen Hristev <eugen.hristev@microchip.com>
    ---
    drivers/media/platform/atmel/atmel-isi.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c
    index d7d94c1..428f117 100644
    --- a/drivers/media/platform/atmel/atmel-isi.c
    +++ b/drivers/media/platform/atmel/atmel-isi.c
    @@ -493,7 +493,7 @@ static void stop_streaming(struct vb2_queue *vq)
    spin_unlock_irq(&isi->irqlock);

    if (!isi->enable_preview_path) {
    - timeout = jiffies + FRAME_INTERVAL_MILLI_SEC * HZ;
    + timeout = jiffies + (FRAME_INTERVAL_MILLI_SEC * HZ) / 1000;
    /* Wait until the end of the current frame. */
    while ((isi_readl(isi, ISI_STATUS) & ISI_CTRL_CDC) &&
    time_before(jiffies, timeout))
    --
    2.7.4
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