diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index ce465975a6a5..bb91b1248cd1 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -15,6 +15,8 @@
 
 #ifdef __KERNEL__
 
+#include <asm/system.h>
+
 #define ATOMIC_INIT(i)  { (i) }
 
 extern int __atomic_add_return(int, atomic_t *);
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index 6ce5d2598a09..adf5f273868a 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -1183,8 +1183,7 @@ struct ldc_channel *ldc_alloc(unsigned long id,
 	free_queue(lp->tx_num_entries, lp->tx_base);
 
 out_free_mssbuf:
-	if (mssbuf)
-		kfree(mssbuf);
+	kfree(mssbuf);
 
 out_free_iommu:
 	ldc_iommu_release(lp);
@@ -1217,8 +1216,7 @@ void ldc_free(struct ldc_channel *lp)
 
 	hlist_del(&lp->list);
 
-	if (lp->mssbuf)
-		kfree(lp->mssbuf);
+	kfree(lp->mssbuf);
 
 	ldc_iommu_release(lp);
 
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 708e12a26b05..f7642e5a94db 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -118,9 +118,9 @@ void __cpuinit smp_callin(void)
 	while (!cpu_isset(cpuid, smp_commenced_mask))
 		rmb();
 
-	ipi_call_lock();
+	ipi_call_lock_irq();
 	cpu_set(cpuid, cpu_online_map);
-	ipi_call_unlock();
+	ipi_call_unlock_irq();
 
 	/* idle thread is expected to have preempt disabled */
 	preempt_disable();
diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c
index e6d1fc8c54f1..a85ad05e8548 100644
--- a/drivers/sbus/char/jsflash.c
+++ b/drivers/sbus/char/jsflash.c
@@ -383,18 +383,22 @@ static int jsf_ioctl_program(void __user *arg)
 	return 0;
 }
 
-static int jsf_ioctl(struct inode *inode, struct file *f, unsigned int cmd,
-    unsigned long arg)
+static long jsf_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 {
+	lock_kernel();
 	int error = -ENOTTY;
 	void __user *argp = (void __user *)arg;
 
-	if (!capable(CAP_SYS_ADMIN))
+	if (!capable(CAP_SYS_ADMIN)) {
+		unlock_kernel();
 		return -EPERM;
+	}
 	switch (cmd) {
 	case JSFLASH_IDENT:
-		if (copy_to_user(argp, &jsf0.id, JSFIDSZ))
+		if (copy_to_user(argp, &jsf0.id, JSFIDSZ)) {
+			unlock_kernel();
 			return -EFAULT;
+		}
 		break;
 	case JSFLASH_ERASE:
 		error = jsf_ioctl_erase(arg);
@@ -404,6 +408,7 @@ static int jsf_ioctl(struct inode *inode, struct file *f, unsigned int cmd,
 		break;
 	}
 
+	unlock_kernel();
 	return error;
 }
 
@@ -439,7 +444,7 @@ static const struct file_operations jsf_fops = {
 	.llseek =	jsf_lseek,
 	.read =		jsf_read,
 	.write =	jsf_write,
-	.ioctl =	jsf_ioctl,
+	.unlocked_ioctl =	jsf_ioctl,
 	.mmap =		jsf_mmap,
 	.open =		jsf_open,
 	.release =	jsf_release,
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 27993c37775d..2c56fd56ec63 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -197,9 +197,8 @@ static struct uctrl_driver {
 static void uctrl_get_event_status(struct uctrl_driver *);
 static void uctrl_get_external_status(struct uctrl_driver *);
 
-static int
-uctrl_ioctl(struct inode *inode, struct file *file,
-	      unsigned int cmd, unsigned long arg)
+static long
+uctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	switch (cmd) {
 		default:
@@ -226,7 +225,7 @@ static irqreturn_t uctrl_interrupt(int irq, void *dev_id)
 static const struct file_operations uctrl_fops = {
 	.owner =	THIS_MODULE,
 	.llseek =	no_llseek,
-	.ioctl =	uctrl_ioctl,
+	.unlocked_ioctl =	uctrl_ioctl,
 	.open =		uctrl_open,
 };