lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 10 Oct 2019 09:26:53 -0700
From:   Bjorn Andersson <>
To:     Kalle Valo <>,
        "David S. Miller" <>
        Niklas Cassel <>,
Subject: [PATCH] ath10k: Correct error check of dma_map_single()

The return value of dma_map_single() should be checked for errors using
dma_mapping_error(), rather than testing for NULL. Correct this.

Fixes: 1807da49733e ("ath10k: wmi: add management tx by reference support over wmi")
Reported-by: Niklas Cassel <>
Signed-off-by: Bjorn Andersson <>
 drivers/net/wireless/ath/ath10k/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 3d2c8fcba952..a01868938692 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3904,7 +3904,7 @@ void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
 			     ar->running_fw->fw_file.fw_features)) {
 			paddr = dma_map_single(ar->dev, skb->data,
 					       skb->len, DMA_TO_DEVICE);
-			if (!paddr)
+			if (dma_mapping_error(ar->dev, paddr))
 			ret = ath10k_wmi_mgmt_tx_send(ar, skb, paddr);
 			if (ret) {

Powered by blists - more mailing lists