From: andrew hendry <andrew.hendry@gmail.com>
Date: Thu, 25 Nov 2010 02:18:45 +0000 (+0000)
Subject: X25 remove bkl in call user data length ioctl
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3f0a069a1d5c0ccace735e3a62c1bcef53e4c354;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

X25 remove bkl in call user data length ioctl

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 8cfc419cef4b..ad96ee90fe27 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1562,19 +1562,20 @@ out_dtefac_release:
 		case SIOCX25SCUDMATCHLEN: {
 			struct x25_subaddr sub_addr;
 			rc = -EINVAL;
-			lock_kernel();
+			lock_sock(sk);
 			if(sk->sk_state != TCP_CLOSE)
-				break;
+				goto out_cud_release;
 			rc = -EFAULT;
 			if (copy_from_user(&sub_addr, argp,
 					sizeof(sub_addr)))
-				break;
+				goto out_cud_release;
 			rc = -EINVAL;
 			if(sub_addr.cudmatchlength > X25_MAX_CUD_LEN)
-				break;
+				goto out_cud_release;
 			x25->cudmatchlength = sub_addr.cudmatchlength;
-			unlock_kernel();
 			rc = 0;
+out_cud_release:
+			release_sock(sk);
 			break;
 		}