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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, Michael Walle <michael@walle.cc>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	"David S. Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 31/43] NFC: nxp-nci: dont print header length mismatch on i2c error
Date: Tue, 19 Jul 2022 13:54:02 +0200	[thread overview]
Message-ID: <20220719114524.685458603@linuxfoundation.org> (raw)
In-Reply-To: <20220719114521.868169025@linuxfoundation.org>

From: Michael Walle <michael@walle.cc>

[ Upstream commit 9577fc5fdc8b07b891709af6453545db405e24ad ]

Don't print a misleading header length mismatch error if the i2c call
returns an error. Instead just return the error code without any error
message.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/nxp-nci/i2c.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c
index 871ad23d05c0..f93571d776a8 100644
--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -138,7 +138,9 @@ static int nxp_nci_i2c_fw_read(struct nxp_nci_i2c_phy *phy,
 	skb_put_data(*skb, &header, NXP_NCI_FW_HDR_LEN);
 
 	r = i2c_master_recv(client, skb_put(*skb, frame_len), frame_len);
-	if (r != frame_len) {
+	if (r < 0) {
+		goto fw_read_exit_free_skb;
+	} else if (r != frame_len) {
 		nfc_err(&client->dev,
 			"Invalid frame length: %u (expected %zu)\n",
 			r, frame_len);
@@ -182,7 +184,9 @@ static int nxp_nci_i2c_nci_read(struct nxp_nci_i2c_phy *phy,
 		return 0;
 
 	r = i2c_master_recv(client, skb_put(*skb, header.plen), header.plen);
-	if (r != header.plen) {
+	if (r < 0) {
+		goto nci_read_exit_free_skb;
+	} else if (r != header.plen) {
 		nfc_err(&client->dev,
 			"Invalid frame payload length: %u (expected %u)\n",
 			r, header.plen);
-- 
2.35.1




  parent reply	other threads:[~2022-07-19 12:01 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-19 11:53 [PATCH 4.14 00/43] 4.14.289-rc1 review Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 01/43] ALSA: hda - Add fixup for Dell Latitidue E5430 Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 02/43] ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 03/43] xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 04/43] net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 05/43] ARM: 9213/1: Print message about disabled Spectre workarounds only once Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 06/43] ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 07/43] cgroup: Use separate src/dst nodes when preloading css_sets for migration Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 08/43] nilfs2: fix incorrect masking of permission flags for symlinks Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 09/43] net: dsa: bcm_sf2: force pause link settings Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 10/43] xhci: bail out early if driver cant accress host in resume Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 11/43] xhci: make xhci_handshake timeout for xhci_reset() adjustable Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 12/43] ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 13/43] inetpeer: Fix data-races around sysctl Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 14/43] net: Fix data-races around sysctl_mem Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 15/43] cipso: Fix data-races around sysctl Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 16/43] icmp: " Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 17/43] ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 18/43] icmp: Fix a data-race around sysctl_icmp_ratelimit Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 19/43] icmp: Fix a data-race around sysctl_icmp_ratemask Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 20/43] ipv4: Fix data-races around sysctl_ip_dynaddr Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 21/43] sfc: fix use after free when disabling sriov Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 22/43] seg6: fix skb checksum evaluation in SRH encapsulation/insertion Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 23/43] seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 24/43] sfc: fix kernel panic when creating VF Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 25/43] virtio_mmio: Add missing PM calls to freeze/restore Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 26/43] virtio_mmio: Restore guest page size on resume Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 27/43] netfilter: br_netfilter: do not skip all hooks with 0 priority Greg Kroah-Hartman
2022-07-19 11:53 ` [PATCH 4.14 28/43] cpufreq: pmac32-cpufreq: Fix refcount leak bug Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 29/43] platform/x86: hp-wmi: Ignore Sanitization Mode event Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 30/43] net: tipc: fix possible refcount leak in tipc_sk_create() Greg Kroah-Hartman
2022-07-19 11:54 ` Greg Kroah-Hartman [this message]
2022-07-19 11:54 ` [PATCH 4.14 32/43] net: sfp: fix memory leak in sfp_probe() Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 33/43] ASoC: ops: Fix off by one in range control validation Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 34/43] ASoC: wm5110: Fix DRE control Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 35/43] irqchip: or1k-pic: Undefine mask_ack for level triggered hardware Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 36/43] x86: Clear .brk area at early boot Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 37/43] signal handling: dont use BUG_ON() for debugging Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 38/43] USB: serial: ftdi_sio: add Belimo device ids Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 39/43] usb: dwc3: gadget: Fix event pending check Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 40/43] tty: serial: samsung_tty: set dma burst_size to 1 Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 41/43] serial: 8250: fix return error code in serial8250_request_std_resource() Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 42/43] mm: invalidate hwpoison page cache page in fault path Greg Kroah-Hartman
2022-07-19 11:54 ` [PATCH 4.14 43/43] can: m_can: m_can_tx_handler(): fix use after free of skb Greg Kroah-Hartman
2022-07-20  6:17 ` [PATCH 4.14 00/43] 4.14.289-rc1 review Guenter Roeck
2022-07-20 10:37 ` Naresh Kamboju

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