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From: Lee Jones <lee.jones@linaro.org>
To: stable@vger.kernel.org
Cc: Dedy Lansky <dlansky@codeaurora.org>,
	Maya Erez <merez@codeaurora.org>,
	Kalle Valo <kvalo@codeaurora.org>,
	Lee Jones <lee.jones@linaro.org>
Subject: [PATCH 4.19 05/13] wil6210: check rx_buff_mgmt before accessing it
Date: Fri,  3 Apr 2020 13:18:51 +0100	[thread overview]
Message-ID: <20200403121859.901838-6-lee.jones@linaro.org> (raw)
In-Reply-To: <20200403121859.901838-1-lee.jones@linaro.org>

From: Dedy Lansky <dlansky@codeaurora.org>

[ Upstream commit d6a553c0c61b0b0219764e4d4fc14e385085f374 ]

Make sure rx_buff_mgmt is initialized before accessing it.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index 5fa8d6ad66482..03d0e6c550b98 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -268,6 +268,9 @@ static void wil_move_all_rx_buff_to_free_list(struct wil6210_priv *wil,
 	struct list_head *active = &wil->rx_buff_mgmt.active;
 	dma_addr_t pa;
 
+	if (!wil->rx_buff_mgmt.buff_arr)
+		return;
+
 	while (!list_empty(active)) {
 		struct wil_rx_buff *rx_buff =
 			list_first_entry(active, struct wil_rx_buff, list);
-- 
2.25.1


  parent reply	other threads:[~2020-04-03 12:18 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-03 12:18 [PATCH 4.19 00/13] Backported fixes taken from Sony's Vendor tree Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 01/13] clk: qcom: rcg: Return failure for RCG update Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 02/13] drm/msm: stop abusing dma_map/unmap for cache Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 03/13] arm64: Fix size of __early_cpu_boot_status Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 04/13] drm_dp_mst_topology: fix broken drm_dp_sideband_parse_remote_dpcd_read() Lee Jones
2020-04-03 12:18 ` Lee Jones [this message]
2020-04-03 12:18 ` [PATCH 4.19 06/13] wil6210: ignore HALP ICR if already handled Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 07/13] wil6210: add general initialization/size checks Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 08/13] wil6210: make sure Rx ring sizes are correlated Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 09/13] rpmsg: glink: Remove chunk size word align warning Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 10/13] wil6210: remove reset file from debugfs Lee Jones
2020-04-11 11:47   ` Greg KH
2020-04-14  7:42     ` Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 11/13] perf/core: Reattach a misplaced comment Lee Jones
2020-04-03 12:26   ` Greg KH
2020-04-03 12:52     ` Lee Jones
2020-04-03 13:23       ` Alexander Shishkin
2020-04-11 11:49         ` Greg KH
2020-04-14  7:37           ` Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 12/13] mm/vmalloc.c: move 'area->pages' after if statement Lee Jones
2020-04-03 12:18 ` [PATCH 4.19 13/13] usb: dwc3: don't set gadget->is_otg flag Lee Jones
2020-04-20 11:24 ` [PATCH 4.19 00/13] Backported fixes taken from Sony's Vendor tree Greg KH

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