Re: [PATCH] sound/oss/pss: Fix test of unsigned in pss_reset_dsp() and pss_download_boot()

[Roel Kluin <roel.kluin@gmail.com>]

limit and jiffies are unsigned so the test did not work.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
Found using coccinelle: http://coccinelle.lip6.fr/

>> -	for (i = 0; i < 32768 && (limit-jiffies >= 0); i++)
>> +	for (i = 0; i < 32768 && (limit >= jiffies); i++)
> 
> No, it should use time_after_eq(limit, jiffies) instead.
> 
> 
> thanks,
> 
> Takashi
> 

Ok,

diff --git a/sound/oss/pss.c b/sound/oss/pss.c
index 83f5ee2..e19dd5d 100644
--- a/sound/oss/pss.c
+++ b/sound/oss/pss.c
@@ -269,7 +269,7 @@ static int pss_reset_dsp(pss_confdata * devc)
 	unsigned long   i, limit = jiffies + HZ/10;
 
 	outw(0x2000, REG(PSS_CONTROL));
-	for (i = 0; i < 32768 && (limit-jiffies >= 0); i++)
+	for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
 		inw(REG(PSS_CONTROL));
 	outw(0x0000, REG(PSS_CONTROL));
 	return 1;
@@ -369,11 +369,11 @@ static int pss_download_boot(pss_confdata * devc, unsigned char *block, int size
 		outw(0, REG(PSS_DATA));
 
 		limit = jiffies + HZ/10;
-		for (i = 0; i < 32768 && (limit - jiffies >= 0); i++)
+		for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
 			val = inw(REG(PSS_STATUS));
 
 		limit = jiffies + HZ/10;
-		for (i = 0; i < 32768 && (limit-jiffies >= 0); i++)
+		for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++)
 		{
 			val = inw(REG(PSS_STATUS));
 			if (val & 0x4000)