3 files changed, 16 insertions, 23 deletions

diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index ba59839..4070268 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -117,10 +117,6 @@ static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
 	unsigned long flags;
 	unsigned int irq_dirty;
 
-	if (cpumask_weight(mask) != 1) {
-		printk("attempted to set irq affinity for irq %d to multiple CPUs\n", irq);
-		return -1;
-	}
 	i = cpumask_first(mask);
 
 	/* Convert logical CPU to physical CPU */
diff --git a/arch/mips/sibyte/common/sb_tbprof.c b/arch/mips/sibyte/common/sb_tbprof.c
index 637a194..15ea778 100644
--- a/arch/mips/sibyte/common/sb_tbprof.c
+++ b/arch/mips/sibyte/common/sb_tbprof.c
@@ -403,36 +403,31 @@ static int sbprof_zbprof_stop(void)
 static int sbprof_tb_open(struct inode *inode, struct file *filp)
 {
 	int minor;
-	int err = 0;
 
-	lock_kernel();
 	minor = iminor(inode);
-	if (minor != 0) {
-		err = -ENODEV;
-		goto out;
-	}
+	if (minor != 0)
+		return -ENODEV;
 
-	if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED) {
-		err = -EBUSY;
-		goto out;
-	}
+	if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED)
+		return -EBUSY;
 
 	memset(&sbp, 0, sizeof(struct sbprof_tb));
 	sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
 	if (!sbp.sbprof_tbbuf) {
-		err = -ENOMEM;
-		goto out;
+		sbp.open = SB_CLOSED;
+		wmb();
+		return -ENOMEM;
 	}
+
 	memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
 	init_waitqueue_head(&sbp.tb_sync);
 	init_waitqueue_head(&sbp.tb_read);
 	mutex_init(&sbp.lock);
 
 	sbp.open = SB_OPEN;
+	wmb();
 
-  out:
-	unlock_kernel();
-	return err;
+	return 0;
 }
 
 static int sbprof_tb_release(struct inode *inode, struct file *filp)
@@ -440,7 +435,7 @@ static int sbprof_tb_release(struct inode *inode, struct file *filp)
 	int minor;
 
 	minor = iminor(inode);
-	if (minor != 0 || !sbp.open)
+	if (minor != 0 || sbp.open != SB_CLOSED)
 		return -ENODEV;
 
 	mutex_lock(&sbp.lock);
@@ -449,7 +444,8 @@ static int sbprof_tb_release(struct inode *inode, struct file *filp)
 		sbprof_zbprof_stop();
 
 	vfree(sbp.sbprof_tbbuf);
-	sbp.open = 0;
+	sbp.open = SB_CLOSED;
+	wmb();
 
 	mutex_unlock(&sbp.lock);
 
@@ -583,7 +579,8 @@ static int __init sbprof_tb_init(void)
 	}
 	tb_dev = dev;
 
-	sbp.open = 0;
+	sbp.open = SB_CLOSED;
+	wmb();
 	tb_period = zbbus_mhz * 10000LL;
 	pr_info(DEVNAME ": initialized - tb_period = %lld\n",
 		(long long) tb_period);
diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c
index 623ffc9..5277aac 100644
--- a/arch/mips/sibyte/swarm/setup.c
+++ b/arch/mips/sibyte/swarm/setup.c
@@ -106,7 +106,7 @@ void read_persistent_clock(struct timespec *ts)
 		break;
 	}
 	ts->tv_sec = sec;
-	tv->tv_nsec = 0;
+	ts->tv_nsec = 0;
 }
 
 int rtc_mips_set_time(unsigned long sec)