X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=hellochar.c;h=7f659f5816545cbae7799cdbd36718dc1b4628fc;hb=refs%2Fheads%2Ftime;hp=a197a1d31e1396f603eebf0cf45f416d92135769;hpb=014bb573eed1a3f9c907a4ae6186834e98dbb85c;p=cascardo%2Fkernel%2Fsamples%2Fchar2%2F.git

diff --git a/hellochar.c b/hellochar.c
index a197a1d..7f659f5 100644
--- a/hellochar.c
+++ b/hellochar.c
@@ -39,9 +39,9 @@ static int hello_open(struct inode *ino, struct file *fp)
 static ssize_t hello_read(struct file *fp, char __user *buf, size_t sz,
 	loff_t *pos)
 {
-	unsigned long expire = jiffies + 5 * HZ;
-	while (time_after(expire, jiffies))
-		cpu_relax();
+	int i = 1 << 20;
+	while (i--)
+		udelay(10);
 	return 0;
 }