From: Vladimir Shulman <QCA_shulmanv@QCA.qualcomm.com>
Date: Sun, 4 Oct 2015 07:23:21 +0000 (+0300)
Subject: wil6210: pmc logger bug fix
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=6cc6c468381e369e6450257645cf65c67f9f4a1b;p=deliverable%2Flinux.git

wil6210: pmc logger bug fix

When allocating pmc descriptor, the structure is
initially created on stack and later copied to
the physical ring (device) memory. The descriptor
structure must be initialized to zero to avoid
garbage configuration, which may result in pmc
mechanism malfunctioning.

Signed-off-by: Vladimir Shulman <QCA_shulmanv@QCA.qualcomm.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---

diff --git a/drivers/net/wireless/ath/wil6210/pmc.c b/drivers/net/wireless/ath/wil6210/pmc.c
index 8a8cdc61b25b..5ca0307a3274 100644
--- a/drivers/net/wireless/ath/wil6210/pmc.c
+++ b/drivers/net/wireless/ath/wil6210/pmc.c
@@ -110,7 +110,7 @@ void wil_pmc_alloc(struct wil6210_priv *wil,
 	 */
 	for (i = 0; i < num_descriptors; i++) {
 		struct vring_tx_desc *_d = &pmc->pring_va[i];
-		struct vring_tx_desc dd, *d = &dd;
+		struct vring_tx_desc dd = {}, *d = &dd;
 		int j = 0;
 
 		pmc->descriptors[i].va = dma_alloc_coherent(dev,