1 files changed, 11 insertions, 6 deletions

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 55a8fbfdb5b2..45dd77e3ccf6 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -424,7 +424,7 @@ static int __init opal_message_init(struct device_node *opal_node)
 	return 0;
 }
 
-int opal_get_chars(uint32_t vtermno, char *buf, int count)
+ssize_t opal_get_chars(uint32_t vtermno, u8 *buf, size_t count)
 {
 	s64 rc;
 	__be64 evt, len;
@@ -441,10 +441,11 @@ int opal_get_chars(uint32_t vtermno, char *buf, int count)
 	return 0;
 }
 
-static int __opal_put_chars(uint32_t vtermno, const char *data, int total_len, bool atomic)
+static ssize_t __opal_put_chars(uint32_t vtermno, const u8 *data,
+				size_t total_len, bool atomic)
 {
 	unsigned long flags = 0 /* shut up gcc */;
-	int written;
+	ssize_t written;
 	__be64 olen;
 	s64 rc;
 
@@ -484,7 +485,7 @@ static int __opal_put_chars(uint32_t vtermno, const char *data, int total_len, b
 		if (atomic) {
 			/* Should not happen */
 			pr_warn("atomic console write returned partial "
-				"len=%d written=%d\n", total_len, written);
+				"len=%zu written=%zd\n", total_len, written);
 		}
 		if (!written)
 			written = -EAGAIN;
@@ -497,7 +498,7 @@ out:
 	return written;
 }
 
-int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
+ssize_t opal_put_chars(uint32_t vtermno, const u8 *data, size_t total_len)
 {
 	return __opal_put_chars(vtermno, data, total_len, false);
 }
@@ -508,7 +509,8 @@ int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
  * true at the moment because console space can race with OPAL's console
  * writes.
  */
-int opal_put_chars_atomic(uint32_t vtermno, const char *data, int total_len)
+ssize_t opal_put_chars_atomic(uint32_t vtermno, const u8 *data,
+			      size_t total_len)
 {
 	return __opal_put_chars(vtermno, data, total_len, true);
 }
@@ -892,6 +894,7 @@ static void opal_export_attrs(void)
 	kobj = kobject_create_and_add("exports", opal_kobj);
 	if (!kobj) {
 		pr_warn("kobject_create_and_add() of exports failed\n");
+		of_node_put(np);
 		return;
 	}
 
@@ -952,6 +955,8 @@ static void __init opal_imc_init_dev(void)
 	np = of_find_compatible_node(NULL, NULL, IMC_DTB_COMPAT);
 	if (np)
 		of_platform_device_create(np, NULL, NULL);
+
+	of_node_put(np);
 }
 
 static int kopald(void *unused)