From: Szymon Janc <szymon.janc@gmail.com>
Date: Sat, 30 Nov 2013 15:14:57 +0000 (+0100)
Subject: NFC: llcp: Fix possible memory leak while sending I frames
X-Git-Tag: firefly_0821_release~176^2~4570^2~3^2^2~44^2~16
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=43d53c29dd8548404256c05573ff557c927d214b;p=firefly-linux-kernel-4.4.55.git

NFC: llcp: Fix possible memory leak while sending I frames

If sending was not completed due to low memory condition msg_data
was not free before returning from function.

Signed-off-by: Szymon Janc <szymon.janc@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index 693cd1aad582..80057a818737 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -684,8 +684,10 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
 
 		pdu = llcp_allocate_pdu(sock, LLCP_PDU_I,
 					frag_len + LLCP_SEQUENCE_SIZE);
-		if (pdu == NULL)
+		if (pdu == NULL) {
+			kfree(msg_data);
 			return -ENOMEM;
+		}
 
 		skb_put(pdu, LLCP_SEQUENCE_SIZE);