From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sun, 19 Feb 2012 12:06:48 +0000 (+0200)
Subject: Bluetooth: Fix hci_connect error return values
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=48c7aba91f372251867d15efc9cf694ceee2de02;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

Bluetooth: Fix hci_connect error return values

The hci_connect function should either return a valid hci_conn pointer
or a ERR_PTR() but never NULL. This patch fixes the two places where
hci_conn_add failures would have caused a NULL return. The only reason
for failure with hci_conn_add is memory allocation so ENOMEM seems to be
a good choice here.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 7ee6895c4b0c..8549d04e3313 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -551,7 +551,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 	if (!acl) {
 		acl = hci_conn_add(hdev, ACL_LINK, dst);
 		if (!acl)
-			return NULL;
+			return ERR_PTR(-ENOMEM);
 	}
 
 	hci_conn_hold(acl);
@@ -571,7 +571,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
 		sco = hci_conn_add(hdev, type, dst);
 		if (!sco) {
 			hci_conn_put(acl);
-			return NULL;
+			return ERR_PTR(-ENOMEM);
 		}
 	}