Make use of the __free() cleanup handler to automatically free nodes
when they get out of scope.
Remove the need for a 'goto' as an effect.
Signed-off-by: Lu Dai <[email protected]>
---
Changes since v1:
Move the assignment of 'opal' to its declaration
Seperate the declaration of 'np'
drivers/tty/hvc/hvc_opal.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index 095c33ad10f8..c17e8343ea60 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -327,19 +327,18 @@ static void udbg_init_opal_common(void)
void __init hvc_opal_init_early(void)
{
- struct device_node *stdout_node = of_node_get(of_stdout);
+ struct device_node *stdout_node __free(device_node) = of_node_get(of_stdout);
const __be32 *termno;
const struct hv_ops *ops;
u32 index;
/* If the console wasn't in /chosen, try /ibm,opal */
if (!stdout_node) {
- struct device_node *opal, *np;
-
/* Current OPAL takeover doesn't provide the stdout
* path, so we hard wire it
*/
- opal = of_find_node_by_path("/ibm,opal/consoles");
+ struct device_node *opal __free(device_node) =
+ of_find_node_by_path("/ibm,opal/consoles");
if (opal) {
pr_devel("hvc_opal: Found consoles in new location\n");
} else {
@@ -350,13 +349,13 @@ void __init hvc_opal_init_early(void)
}
if (!opal)
return;
+ struct device_node *np;
for_each_child_of_node(opal, np) {
if (of_node_name_eq(np, "serial")) {
stdout_node = np;
break;
}
}
- of_node_put(opal);
}
if (!stdout_node)
return;
@@ -382,13 +381,11 @@ void __init hvc_opal_init_early(void)
hvsilib_establish(&hvc_opal_boot_priv.hvsi);
pr_devel("hvc_opal: Found HVSI console\n");
} else
- goto out;
+ return;
hvc_opal_boot_termno = index;
udbg_init_opal_common();
add_preferred_console("hvc", index, NULL);
hvc_instantiate(index, index, ops);
-out:
- of_node_put(stdout_node);
}
#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL_RAW
--
2.39.2