diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 40d008b0bd3e98e43d07469dbf73d4c358507b29..05eb016fc41be2856632ddebce30599567d365ae 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -108,10 +108,9 @@ int iommu_table_init(struct iommu *iommu, int tsbsize,
 	/* Allocate and initialize the free area map.  */
 	sz = num_tsb_entries / 8;
 	sz = (sz + 7UL) & ~7UL;
-	iommu->tbl.map = kmalloc_node(sz, GFP_KERNEL, numa_node);
+	iommu->tbl.map = kzalloc_node(sz, GFP_KERNEL, numa_node);
 	if (!iommu->tbl.map)
 		return -ENOMEM;
-	memset(iommu->tbl.map, 0, sz);
 
 	iommu_tbl_pool_init(&iommu->tbl, num_tsb_entries, IO_PAGE_SHIFT,
 			    (tlb_type != hypervisor ? iommu_flushall : NULL),
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index 4c5b3fcbed94c376a2a44bb0c4fdaab139b3a169..e800ce13cc6e5bb2646e10ad0cdd0c71e9a80d44 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -683,6 +683,7 @@ void do_signal32(struct pt_regs * regs)
 				regs->tpc -= 4;
 				regs->tnpc -= 4;
 				pt_regs_clear_syscall(regs);
+				/* fall through */
 			case ERESTART_RESTARTBLOCK:
 				regs->u_regs[UREG_G1] = __NR_restart_syscall;
 				regs->tpc -= 4;
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 5665261cee37f2330ab7dbd08ecce91593301a64..83953780ca016c4944e2284014c50eb661357aa4 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -508,6 +508,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 				regs->pc -= 4;
 				regs->npc -= 4;
 				pt_regs_clear_syscall(regs);
+				/* fall through */
 			case ERESTART_RESTARTBLOCK:
 				regs->u_regs[UREG_G1] = __NR_restart_syscall;
 				regs->pc -= 4;
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index e9de1803a22e004adbb3d6b541ad552f71626e7d..ca70787efd8e05de3d4ec8a3f9a8040bfb4c4844 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -533,6 +533,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 				regs->tpc -= 4;
 				regs->tnpc -= 4;
 				pt_regs_clear_syscall(regs);
+				/* fall through */
 			case ERESTART_RESTARTBLOCK:
 				regs->u_regs[UREG_G1] = __NR_restart_syscall;
 				regs->tpc -= 4;
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 5c8ed7350a04a4f65be2eefa103637f2943e5a37..a36e4cf1841d9da7fd22cb5f6491d134b9b7f96f 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -220,6 +220,7 @@ static int d7s_probe(struct platform_device *op)
 	dev_set_drvdata(&op->dev, p);
 	d7s_device = p;
 	err = 0;
+	of_node_put(opts);
 
 out:
 	return err;
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 56e962a014939e31c7ad74687263ecd69558ef7b..b8481927bfe4048b4147e01c77c0f7f695ab90bb 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -910,8 +910,10 @@ static void envctrl_init_i2c_child(struct device_node *dp,
 			for (len = 0; len < PCF8584_MAX_CHANNELS; ++len) {
 				pchild->mon_type[len] = ENVCTRL_NOMON;
 			}
+			of_node_put(root_node);
 			return;
 		}
+		of_node_put(root_node);
 	}
 
 	/* Get the monitor channels. */
diff --git a/drivers/tty/serial/suncore.c b/drivers/tty/serial/suncore.c
index 70a4ea4eaa6e72b1191c27d66111c4ddb11d46f5..990376576970ae3607a5b645407050a4dfab82af 100644
--- a/drivers/tty/serial/suncore.c
+++ b/drivers/tty/serial/suncore.c
@@ -112,6 +112,7 @@ void sunserial_console_termios(struct console *con, struct device_node *uart_dp)
 		mode = of_get_property(dp, mode_prop, NULL);
 		if (!mode)
 			mode = "9600,8,n,1,-";
+		of_node_put(dp);
 	}
 
 	cflag = CREAD | HUPCL | CLOCAL;