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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Jiasheng Jiang <jiasheng@iscas.ac.cn>,
	"David S. Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 17/22] atm: eni: Add check for dma_map_single
Date: Mon, 21 Mar 2022 14:51:48 +0100	[thread overview]
Message-ID: <20220321133218.114769298@linuxfoundation.org> (raw)
In-Reply-To: <20220321133217.602054917@linuxfoundation.org>

From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

[ Upstream commit 0f74b29a4f53627376cf5a5fb7b0b3fa748a0b2b ]

As the potential failure of the dma_map_single(),
it should be better to check it and return error
if fails.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/atm/eni.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index ffe519663687..e88fad45241f 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1114,6 +1114,8 @@ DPRINTK("iovcnt = %d\n",skb_shinfo(skb)->nr_frags);
 	}
 	paddr = dma_map_single(&eni_dev->pci_dev->dev,skb->data,skb->len,
 			       DMA_TO_DEVICE);
+	if (dma_mapping_error(&eni_dev->pci_dev->dev, paddr))
+		return enq_next;
 	ENI_PRV_PADDR(skb) = paddr;
 	/* prepare DMA queue entries */
 	j = 0;
-- 
2.34.1




  parent reply	other threads:[~2022-03-21 13:55 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-21 13:51 [PATCH 4.14 00/22] 4.14.273-rc1 review Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 01/22] sctp: fix the processing for INIT chunk Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 02/22] sctp: fix the processing for INIT_ACK chunk Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 03/22] xfrm: Fix xfrm migrate issues when address family changes Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 04/22] arm64: dts: rockchip: fix rk3399-puma eMMC HS400 signal integrity Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 05/22] ARM: dts: rockchip: fix a typo on rk3288 crypto-controller Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 06/22] MIPS: smp: fill in sibling and core maps earlier Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 07/22] ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 08/22] can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 09/22] atm: firestream: check the return value of ioremap() in fs_init() Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 10/22] nl80211: Update bss channel on channel switch for P2P_CLIENT Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 11/22] tcp: make tcp_read_sock() more robust Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 12/22] sfc: extend the locking on mcdi->seqno Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 13/22] kselftest/vm: fix tests build with old libc Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 14/22] fs: sysfs_emit: Remove PAGE_SIZE alignment check Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 15/22] efi: fix return value of __setup handlers Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 16/22] net/packet: fix slab-out-of-bounds access in packet_recvmsg() Greg Kroah-Hartman
2022-03-21 13:51 ` Greg Kroah-Hartman [this message]
2022-03-21 13:51 ` [PATCH 4.14 18/22] net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit() Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 19/22] usb: gadget: rndis: prevent integer overflow in rndis_set_response() Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 20/22] usb: gadget: Fix use-after-free bug by not setting udc->dev.driver Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 21/22] Input: aiptek - properly check endpoint type Greg Kroah-Hartman
2022-03-21 13:51 ` [PATCH 4.14 22/22] perf symbols: Fix symbol size calculation condition Greg Kroah-Hartman
2022-03-21 19:08 ` [PATCH 4.14 00/22] 4.14.273-rc1 review Jon Hunter
2022-03-22  1:59 ` Guenter Roeck
2022-03-22 15:27 ` Naresh Kamboju

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