From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Nicolin Chen <nicoleotsuka@gmail.com>,
Guenter Roeck <linux@roeck-us.net>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 17/51] hwmon: (ina2xx) Fix current value calculation
Date: Fri, 14 Dec 2018 13:00:19 +0100 [thread overview]
Message-ID: <20181214115714.930491688@linuxfoundation.org> (raw)
In-Reply-To: <20181214115713.244259772@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit 38cd989ee38c16388cde89db5b734f9d55b905f9 ]
The current register (04h) has a sign bit at MSB. The comments
for this calculation also mention that it's a signed register.
However, the regval is unsigned type so result of calculation
turns out to be an incorrect value when current is negative.
This patch simply fixes this by adding a casting to s16.
Fixes: 5d389b125186c ("hwmon: (ina2xx) Make calibration register value fixed")
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/ina2xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 9ac6e1673375..1f291b344178 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -273,7 +273,7 @@ static int ina2xx_get_value(struct ina2xx_data *data, u8 reg,
break;
case INA2XX_CURRENT:
/* signed register, result in mA */
- val = regval * data->current_lsb_uA;
+ val = (s16)regval * data->current_lsb_uA;
val = DIV_ROUND_CLOSEST(val, 1000);
break;
case INA2XX_CALIBRATION:
--
2.19.1
next prev parent reply other threads:[~2018-12-14 12:00 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 12:00 [PATCH 4.9 00/51] 4.9.146-stable review Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 01/51] ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes Greg Kroah-Hartman
2018-12-16 9:56 ` jwiesner
2018-12-17 8:37 ` Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 02/51] ipv6: Check available headroom in ip6_xmit() even without options Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 03/51] net: 8139cp: fix a BUG triggered by changing mtu with network traffic Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 04/51] net/mlx4_core: Correctly set PFC param if global pause is turned off Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 05/51] net: phy: dont allow __set_phy_supported to add unsupported modes Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 06/51] net: Prevent invalid access to skb->prev in __qdisc_drop_all Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 07/51] rtnetlink: ndo_dflt_fdb_dump() only work for ARPHRD_ETHER devices Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 08/51] tcp: fix NULL ref in tail loss probe Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 09/51] tun: forbid iface creation with rtnl ops Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 10/51] neighbour: Avoid writing before skb->head in neigh_hh_output() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 11/51] ARM: OMAP2+: prm44xx: Fix section annotation on omap44xx_prm_enable_io_wakeup Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 12/51] ARM: dts: logicpd-somlv: Fix interrupt on mmc3_dat1 Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 13/51] ARM: OMAP1: ams-delta: Fix possible use of uninitialized field Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 14/51] sysv: return err instead of 0 in __sysv_write_inode Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 15/51] selftests: add script to stress-test nft packet path vs. control plane Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 16/51] s390/cpum_cf: Reject request for sampling in event initialization Greg Kroah-Hartman
2018-12-14 12:00 ` Greg Kroah-Hartman [this message]
2018-12-14 12:00 ` [PATCH 4.9 18/51] ASoC: omap-abe-twl6040: Fix missing audio card caused by deferred probing Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 19/51] ASoC: dapm: Recalculate audio map forcely when card instantiated Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 20/51] hwmon: (w83795) temp4_type has writable permission Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 21/51] objtool: Fix double-free in .cold detection error path Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 22/51] objtool: Fix segfault in .cold detection with -ffunction-sections Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 23/51] Btrfs: send, fix infinite loop due to directory rename dependencies Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 24/51] RDMA/mlx5: Fix fence type for IB_WR_LOCAL_INV WR Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 25/51] ASoC: omap-mcpdm: Add pm_qos handling to avoid under/overruns with CPU_IDLE Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 26/51] ASoC: omap-dmic: Add pm_qos handling to avoid overruns " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 27/51] exportfs: do not read dentry after free Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 28/51] bpf: fix check of allowed specifiers in bpf_trace_printk Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 29/51] ipvs: call ip_vs_dst_notifier earlier than ipv6_dev_notf Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 30/51] USB: omap_udc: use devm_request_irq() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 31/51] USB: omap_udc: fix crashes on probe error and module removal Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 32/51] USB: omap_udc: fix omap_udc_start() on 15xx machines Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 33/51] USB: omap_udc: fix USB gadget functionality on Palm Tungsten E Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 34/51] KVM: x86: fix empty-body warnings Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 35/51] x86/kvm/vmx: fix old-style function declaration Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 36/51] net: thunderx: fix NULL pointer dereference in nic_remove Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 37/51] cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is active Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 38/51] igb: fix uninitialized variables Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 39/51] ixgbe: recognize 1000BaseLX SFP modules as 1Gbps Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 40/51] net: hisilicon: remove unexpected free_netdev Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 41/51] drm/ast: fixed reading monitor EDID not stable issue Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 42/51] xen: xlate_mmu: add missing header to fix W=1 warning Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 43/51] fscache: fix race between enablement and dropping of object Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 44/51] fscache, cachefiles: remove redundant variable cache Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 45/51] ocfs2: fix deadlock caused by ocfs2_defrag_extent() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 46/51] hfs: do not free node before using Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 47/51] hfsplus: " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 48/51] debugobjects: avoid recursive calls with kmemleak Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 49/51] ocfs2: fix potential use after free Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 50/51] pstore: Convert console write to use ->write_buf Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.9 51/51] staging: speakup: Replace strncpy with memcpy Greg Kroah-Hartman
2018-12-14 15:53 ` [PATCH 4.9 00/51] 4.9.146-stable review kernelci.org bot
2018-12-14 20:13 ` shuah
2018-12-15 2:07 ` Guenter Roeck
2018-12-15 16:51 ` Dan Rue
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