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[media] media: stb0899_drv: use time_after()

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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>
This commit is contained in:
Asaf Vertz 2014-12-14 03:49:47 -03:00 committed by Mauro Carvalho Chehab
parent a6c896c1b2
commit 3edd59abb0
1 changed files with 4 additions and 3 deletions
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7
drivers/media/dvb-frontends/stb0899_drv.c
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@ -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 @@ static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeo
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 @@ static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
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 @@ static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
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;
}