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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, Wei Yongjun <weiyongjun1@huawei.com>,
	Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH 4.19 21/30] hwmon: (lm80) Fix missing unlock on error in set_fan_div()
Date: Thu, 21 Feb 2019 15:36:03 +0100	[thread overview]
Message-ID: <20190221125251.736561623@linuxfoundation.org> (raw)
In-Reply-To: <20190221125250.543158526@linuxfoundation.org>

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyongjun1@huawei.com>

commit 07bd14ccc3049f9c0147a91a4227a571f981601a upstream.

Add the missing unlock before return from function set_fan_div()
in the error handling case.

Fixes: c9c63915519b ("hwmon: (lm80) fix a missing check of the status of SMBus read")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hwmon/lm80.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -393,8 +393,10 @@ static ssize_t set_fan_div(struct device
 	}
 
 	rv = lm80_read_value(client, LM80_REG_FANDIV);
-	if (rv < 0)
+	if (rv < 0) {
+		mutex_unlock(&data->update_lock);
 		return rv;
+	}
 	reg = (rv & ~(3 << (2 * (nr + 1))))
 	    | (data->fan_div[nr] << (2 * (nr + 1)));
 	lm80_write_value(client, LM80_REG_FANDIV, reg);



  parent reply	other threads:[~2019-02-21 14:41 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-21 14:35 [PATCH 4.19 00/30] 4.19.25-stable review Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 01/30] af_packet: fix raw sockets over 6in4 tunnel Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 02/30] dsa: mv88e6xxx: Ensure all pending interrupts are handled prior to exit Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 03/30] mlxsw: __mlxsw_sp_port_headroom_set(): Fix a use of local variable Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 04/30] net: crypto set sk to NULL when af_alg_release Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 05/30] net: Fix for_each_netdev_feature on Big endian Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 06/30] net: fix IPv6 prefix route residue Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 07/30] net: ip6_gre: initialize erspan_ver just for erspan tunnels Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 08/30] net: ipv4: use a dedicated counter for icmp_v4 redirect packets Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 09/30] net: phy: xgmiitorgmii: Support generic PHY status read Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 10/30] net: stmmac: Fix a race in EEE enable callback Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 11/30] net: stmmac: handle endianness in dwmac4_get_timestamp Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 12/30] net: validate untrusted gso packets without csum offload Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 13/30] sky2: Increase D3 delay again Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 14/30] vhost: correctly check the return value of translate_desc() in log_used() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 15/30] vsock: cope with memory allocation failure at socket creation time Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 16/30] vxlan: test dev->flags & IFF_UP before calling netif_rx() Greg Kroah-Hartman
2019-02-21 14:35 ` [PATCH 4.19 17/30] net: Add header for usage of fls64() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 18/30] tcp: clear icsk_backoff in tcp_write_queue_purge() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 19/30] tcp: tcp_v4_err() should be more careful Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 20/30] net: Do not allocate page fragments that are not skb aligned Greg Kroah-Hartman
2019-02-21 14:36 ` Greg Kroah-Hartman [this message]
2019-02-21 14:36 ` [PATCH 4.19 22/30] scsi: target/core: Use kmem_cache_free() instead of kfree() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA Greg Kroah-Hartman
2019-02-21 15:00   ` Andrey Ryabinin
2019-02-21 15:26     ` Greg Kroah-Hartman
2019-02-21 15:30       ` Andrey Ryabinin
2019-02-21 16:08         ` Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 24/30] mmc: meson-gx: fix interrupt name Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 25/30] PCI: Fix __initdata issue with "pci=disable_acs_redir" parameter Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 26/30] sunrpc: fix 4 more call sites that were using stack memory with a scatterlist Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 27/30] netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 28/30] net/x25: do not hold the cpu too long in x25_new_lci() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 29/30] mISDN: fix a race in dev_expire_timer() Greg Kroah-Hartman
2019-02-21 14:36 ` [PATCH 4.19 30/30] ax25: fix possible use-after-free Greg Kroah-Hartman
2019-02-22  8:14 ` [PATCH 4.19 00/30] 4.19.25-stable review Jon Hunter
2019-02-22  8:24   ` Greg Kroah-Hartman
2019-02-22  9:04 ` Naresh Kamboju
2019-02-22 23:10 ` shuah
2019-02-22 23:31 ` Guenter Roeck

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