---

yaml
---
r: 180713
b: refs/heads/master
c: 3dae93e
h: refs/heads/master
i:
  180711: 6cce01b
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 87b8d1adefa1548b591cbf0d63965987e2cf893d
+refs/heads/master: 3dae93ec3ee1fceec69f40ef9b97892ce62ba7a5

trunk/drivers/watchdog/bfin_wdt.c

@@ -1,9 +1,8 @@
 /*
  * Blackfin On-Chip Watchdog Driver
- *  Supports BF53[123]/BF53[467]/BF54[2489]/BF561
  *
  * Originally based on softdog.c
- * Copyright 2006-2007 Analog Devices Inc.
+ * Copyright 2006-2010 Analog Devices Inc.
  * Copyright 2006-2007 Michele d'Amico
  * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
  *
@@ -137,13 +136,15 @@ static int bfin_wdt_running(void)
  */
 static int bfin_wdt_set_timeout(unsigned long t)
 {
-	u32 cnt;
+	u32 cnt, max_t, sclk;
 	unsigned long flags;
 
-	stampit();
+	sclk = get_sclk();
+	max_t = -1 / sclk;
+	cnt = t * sclk;
+	stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt);
 
-	cnt = t * get_sclk();
-	if (cnt < get_sclk()) {
+	if (t > max_t) {
 		printk(KERN_WARNING PFX "timeout value is too large\n");
 		return -EINVAL;
 	}

trunk/mm/migrate.c

@@ -1002,27 +1002,33 @@ static int do_pages_stat(struct mm_struct *mm, unsigned long nr_pages,
 #define DO_PAGES_STAT_CHUNK_NR 16
 	const void __user *chunk_pages[DO_PAGES_STAT_CHUNK_NR];
 	int chunk_status[DO_PAGES_STAT_CHUNK_NR];
+	unsigned long i, chunk_nr = DO_PAGES_STAT_CHUNK_NR;
+	int err;
 
-	while (nr_pages) {
-		unsigned long chunk_nr;
-
-		chunk_nr = nr_pages;
-		if (chunk_nr > DO_PAGES_STAT_CHUNK_NR)
-			chunk_nr = DO_PAGES_STAT_CHUNK_NR;
+	for (i = 0; i < nr_pages; i += chunk_nr) {
+		if (chunk_nr > nr_pages - i)
+			chunk_nr = nr_pages - i;
 
-		if (copy_from_user(chunk_pages, pages, chunk_nr * sizeof(*chunk_pages)))
-			break;
+		err = copy_from_user(chunk_pages, &pages[i],
+				     chunk_nr * sizeof(*chunk_pages));
+		if (err) {
+			err = -EFAULT;
+			goto out;
+		}
 
 		do_pages_stat_array(mm, chunk_nr, chunk_pages, chunk_status);
 
-		if (copy_to_user(status, chunk_status, chunk_nr * sizeof(*status)))
-			break;
-
-		pages += chunk_nr;
-		status += chunk_nr;
-		nr_pages -= chunk_nr;
+		err = copy_to_user(&status[i], chunk_status,
+				   chunk_nr * sizeof(*chunk_status));
+		if (err) {
+			err = -EFAULT;
+			goto out;
+		}
 	}
-	return nr_pages ? -EFAULT : 0;
+	err = 0;
+
+out:
+	return err;
 }
 
 /*