[PATCH] nfc: nci: fix potential NULL pointer dereference

[Gustavo A. R. Silva]

NULL check at line 76: if (conn_info) {, implies that pointer conn_info
might be NULL, but this pointer is being previously dereferenced,
which might cause a NULL pointer dereference.

Add NULL check before dereferencing pointer conn_info in order to
avoid a potential NULL pointer dereference.

Addresses-Coverity-ID: 1362349
Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
 net/nfc/nci/core.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 61fff42..d2198ce 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -70,14 +70,13 @@ int nci_get_conn_info_by_dest_type_params(struct nci_dev 
*ndev, u8 dest_type,
        struct nci_conn_info *conn_info;
 
        list_for_each_entry(conn_info, &ndev->conn_info_list, list) {
-               if (conn_info->dest_type == dest_type) {
+               if (conn_info && conn_info->dest_type == dest_type) {
                        if (!params)
                                return conn_info->conn_id;
-                       if (conn_info) {
-                               if (params->id == conn_info->dest_params->id &&
-                                   params->protocol == 
conn_info->dest_params->protocol)
-                                       return conn_info->conn_id;
-                       }
+
+                       if (params->id == conn_info->dest_params->id &&
+                           params->protocol == 
conn_info->dest_params->protocol)
+                               return conn_info->conn_id;
                }
        }
 
-- 
2.5.0