From: Wang Qing <wangqing@xxxxxxxx> It is better to use time_xxx() directly instead of jiffies judgment for understanding. Signed-off-by: Wang Qing <wangqing@xxxxxxxx> --- drivers/media/test-drivers/vivid/vivid-kthread-cap.c | 3 ++- drivers/media/test-drivers/vivid/vivid-kthread-out.c | 3 ++- drivers/media/test-drivers/vivid/vivid-kthread-touch.c | 3 ++- drivers/media/test-drivers/vivid/vivid-sdr-cap.c | 3 ++- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-cap.c b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c index 6baa046..295f4a3 --- a/drivers/media/test-drivers/vivid/vivid-kthread-cap.c +++ b/drivers/media/test-drivers/vivid/vivid-kthread-cap.c @@ -18,6 +18,7 @@ #include <linux/freezer.h> #include <linux/random.h> #include <linux/v4l2-dv-timings.h> +#include <linux/jiffies.h> #include <asm/div64.h> #include <media/videobuf2-vmalloc.h> #include <media/v4l2-dv-timings.h> @@ -893,7 +894,7 @@ static int vivid_thread_vid_cap(void *data) next_jiffies_since_start = jiffies_since_start; wait_jiffies = next_jiffies_since_start - jiffies_since_start; - while (jiffies - cur_jiffies < wait_jiffies && + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && !kthread_should_stop()) schedule(); } diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-out.c b/drivers/media/test-drivers/vivid/vivid-kthread-out.c index b6d4316..13f737e --- a/drivers/media/test-drivers/vivid/vivid-kthread-out.c +++ b/drivers/media/test-drivers/vivid/vivid-kthread-out.c @@ -18,6 +18,7 @@ #include <linux/freezer.h> #include <linux/random.h> #include <linux/v4l2-dv-timings.h> +#include <linux/jiffies.h> #include <asm/div64.h> #include <media/videobuf2-vmalloc.h> #include <media/v4l2-dv-timings.h> @@ -234,7 +235,7 @@ static int vivid_thread_vid_out(void *data) next_jiffies_since_start = jiffies_since_start; wait_jiffies = next_jiffies_since_start - jiffies_since_start; - while (jiffies - cur_jiffies < wait_jiffies && + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && !kthread_should_stop()) schedule(); } diff --git a/drivers/media/test-drivers/vivid/vivid-kthread-touch.c b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c index f065faae..8828243 --- a/drivers/media/test-drivers/vivid/vivid-kthread-touch.c +++ b/drivers/media/test-drivers/vivid/vivid-kthread-touch.c @@ -5,6 +5,7 @@ */ #include <linux/freezer.h> +#include <linux/jiffies.h> #include "vivid-core.h" #include "vivid-kthread-touch.h" #include "vivid-touch-cap.h" @@ -134,7 +135,7 @@ static int vivid_thread_touch_cap(void *data) next_jiffies_since_start = jiffies_since_start; wait_jiffies = next_jiffies_since_start - jiffies_since_start; - while (jiffies - cur_jiffies < wait_jiffies && + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && !kthread_should_stop()) schedule(); } diff --git a/drivers/media/test-drivers/vivid/vivid-sdr-cap.c b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c index 59fd508..f82856b --- a/drivers/media/test-drivers/vivid/vivid-sdr-cap.c +++ b/drivers/media/test-drivers/vivid/vivid-sdr-cap.c @@ -17,6 +17,7 @@ #include <media/v4l2-event.h> #include <media/v4l2-dv-timings.h> #include <linux/fixp-arith.h> +#include <linux/jiffies.h> #include "vivid-core.h" #include "vivid-ctrls.h" @@ -205,7 +206,7 @@ static int vivid_thread_sdr_cap(void *data) next_jiffies_since_start = jiffies_since_start; wait_jiffies = next_jiffies_since_start - jiffies_since_start; - while (jiffies - cur_jiffies < wait_jiffies && + while (time_is_after_jiffies(cur_jiffies + wait_jiffies) && !kthread_should_stop()) schedule(); } -- 2.7.4
