[media] media: stb0899_drv: use time_after()
To be future-proof and for better readability the time comparisons are
modified to use time_after() instead of plain, error-prone math.
Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/dvb-frontends/stb0899_drv.c b/drivers/media/dvb-frontends/stb0899_drv.c
index 19646fb..c73899d 100644
--- a/drivers/media/dvb-frontends/stb0899_drv.c
+++ b/drivers/media/dvb-frontends/stb0899_drv.c
@@ -20,6 +20,7 @@
*/
#include <linux/init.h>
+#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -691,7 +692,7 @@
reg = stb0899_read_reg(state, STB0899_DISSTATUS);
if (!STB0899_GETFIELD(FIFOFULL, reg))
break;
- if ((jiffies - start) > timeout) {
+ if (time_after(jiffies, start + timeout)) {
dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
return -ETIMEDOUT;
}
@@ -733,7 +734,7 @@
while (!STB0899_GETFIELD(RXEND, reg)) {
reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
- if (jiffies - start > timeout) {
+ if (time_after(jiffies, start + timeout)) {
dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
return -ETIMEDOUT;
}
@@ -782,7 +783,7 @@
while (!STB0899_GETFIELD(TXIDLE, reg)) {
reg = stb0899_read_reg(state, STB0899_DISSTATUS);
- if (jiffies - start > timeout) {
+ if (time_after(jiffies, start + timeout)) {
dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
return -ETIMEDOUT;
}