X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fselect.c;h=87df51eadcf2bd170ab0271e189cf8a580aa1adb;hb=464f763d5aeac1c31f6c626afbc4ea086c78a7b4;hp=fdd8584e536dca956dd1b8a6ec4c68f2ef8ea9f5;hpb=4ce105d30e08fb8a1783c55a0e48aa3fa200c455;p=linux-2.6-omap-h63xx.git

diff --git a/fs/select.c b/fs/select.c
index fdd8584e536..87df51eadcf 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -41,9 +41,9 @@
  * better solutions..
  */
 
-static unsigned long __estimate_accuracy(struct timespec *tv)
+static long __estimate_accuracy(struct timespec *tv)
 {
-	unsigned long slack;
+	long slack;
 	int divfactor = 1000;
 
 	if (task_nice(current) > 0)
@@ -54,10 +54,13 @@ static unsigned long __estimate_accuracy(struct timespec *tv)
 
 	if (slack > 100 * NSEC_PER_MSEC)
 		slack =  100 * NSEC_PER_MSEC;
+
+	if (slack < 0)
+		slack = 0;
 	return slack;
 }
 
-static unsigned long estimate_accuracy(struct timespec *tv)
+static long estimate_accuracy(struct timespec *tv)
 {
 	unsigned long ret;
 	struct timespec now;
@@ -330,7 +333,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 		timed_out = 1;
 	}
 
-	if (end_time)
+	if (end_time && !timed_out)
 		slack = estimate_accuracy(end_time);
 
 	retval = 0;
@@ -516,8 +519,9 @@ asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
 			return -EFAULT;
 
 		to = &end_time;
-		if (poll_select_set_timeout(to, tv.tv_sec,
-					    tv.tv_usec * NSEC_PER_USEC))
+		if (poll_select_set_timeout(to,
+				tv.tv_sec + (tv.tv_usec / USEC_PER_SEC),
+				(tv.tv_usec % USEC_PER_SEC) * NSEC_PER_USEC))
 			return -EINVAL;
 	}
 
@@ -656,7 +660,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 		timed_out = 1;
 	}
 
-	if (end_time)
+	if (end_time && !timed_out)
 		slack = estimate_accuracy(end_time);
 
 	for (;;) {