Module parameter, read_timeout, can only be set at the loading time. As it can only be modified once, initialize read_timeout once in the probe function. As a result, only use read_timeout as the last argument in wait_event_interruptible_timeout() call. Same goes for write_timeout. Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Khadija Kamran <kamrankhadijadj@xxxxxxxxx> --- drivers/staging/axis-fifo/axis-fifo.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c index dfd2b357f484..563caf155713 100644 --- a/drivers/staging/axis-fifo/axis-fifo.c +++ b/drivers/staging/axis-fifo/axis-fifo.c @@ -384,9 +384,7 @@ static ssize_t axis_fifo_read(struct file *f, char __user *buf, mutex_lock(&fifo->read_lock); ret = wait_event_interruptible_timeout(fifo->read_queue, ioread32(fifo->base_addr + XLLF_RDFO_OFFSET), - (read_timeout >= 0) ? - msecs_to_jiffies(read_timeout) : - MAX_SCHEDULE_TIMEOUT); + read_timeout); if (ret <= 0) { if (ret == 0) { @@ -528,9 +526,7 @@ static ssize_t axis_fifo_write(struct file *f, const char __user *buf, ret = wait_event_interruptible_timeout(fifo->write_queue, ioread32(fifo->base_addr + XLLF_TDFV_OFFSET) >= words_to_write, - (write_timeout >= 0) ? - msecs_to_jiffies(write_timeout) : - MAX_SCHEDULE_TIMEOUT); + write_timeout); if (ret <= 0) { if (ret == 0) { @@ -815,6 +811,16 @@ static int axis_fifo_probe(struct platform_device *pdev) char *device_name; int rc = 0; /* error return value */ + if (read_timeout >= 0) + read_timeout = msecs_to_jiffies(read_timeout); + else + read_timeout = MAX_SCHEDULE_TIMEOUT; + + if (write_timeout >= 0) + write_timeout = msecs_to_jiffies(write_timeout); + else + write_timeout = MAX_SCHEDULE_TIMEOUT; + /* ---------------------------- * init wrapper device * ---------------------------- -- 2.34.1