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Message-Id: <20230712133920.9509-1-machel@vivo.com>
Date:   Wed, 12 Jul 2023 21:39:07 +0800
From:   Wang Ming <machel@...o.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Todd Kjos <tkjos@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Christian Brauner <brauner@...nel.org>,
        Carlos Llamas <cmllamas@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com, Wang Ming <machel@...o.com>
Subject: [PATCH v1] android:Fix error checking for debugfs_create_dir() in binder_init()

debugfs_create_dir() does not return NULL,but it is
possible to return error pointer. Most incorrect error checks
were fixed,but the one in binder_init() was forgotten.

Fix the remaining error check.

Signed-off-by: Wang Ming <machel@...o.com>
---
 drivers/android/binder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 486c8271cab7..3b5309484df6 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -6566,7 +6566,7 @@ static int __init binder_init(void)
 	atomic_set(&binder_transaction_log_failed.cur, ~0U);
 
 	binder_debugfs_dir_entry_root = debugfs_create_dir("binder", NULL);
-	if (binder_debugfs_dir_entry_root) {
+	if (!IS_ERR(binder_debugfs_dir_entry_root)) {
 		const struct binder_debugfs_entry *db_entry;
 
 		binder_for_each_debugfs_entry(db_entry)
-- 
2.25.1

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