From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 24 Apr 2014 21:19:35 +0000 (+0200)
Subject: NFC: st21nfca: Free buffer when a bad frame is detected
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0c942b007b52cdcde285fa1122688f186bf99464;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

NFC: st21nfca: Free buffer when a bad frame is detected

When a bad frame is detected for a bad crc.
We were reallocating and loosing the previous frame pointer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index b64d8e2e429a..2337737c6cd4 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -476,6 +476,7 @@ static irqreturn_t st21nfca_hci_irq_thread_fn(int irq, void *phy_id)
 		msleep(wait_tab[phy->crc_trials]);
 		phy->crc_trials++;
 		phy->current_read_len = 0;
+		kfree_skb(phy->pending_skb);
 	} else if (r > 0) {
 		/*
 		 * We succeeded to read data from the CLF and