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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Colin Ian King <colin.king@canonical.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-wireless@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 285/371] bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
Date: Thu, 16 Jan 2020 12:22:37 -0500
Message-ID: <20200116172403.18149-228-sashal@kernel.org> (raw)
In-Reply-To: <20200116172403.18149-1-sashal@kernel.org>

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit 420c20be08a4597404d272ae9793b642401146eb ]

An earlier commit re-worked the setting of the bitmask and is now
assigning v with some bit flags rather than bitwise or-ing them
into v, consequently the earlier bit-settings of v are being lost.
Fix this by replacing an assignment with the bitwise or instead.

Addresses-Coverity: ("Unused value")
Fixes: 2be25cac8402 ("bcma: add constants for PCI and use them")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bcma/driver_pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index f499a469e66d..12b2cc9a3fbe 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -78,7 +78,7 @@ static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u16 device, u8 address)
 		v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD);
 	}
 
-	v = BCMA_CORE_PCI_MDIODATA_START;
+	v |= BCMA_CORE_PCI_MDIODATA_START;
 	v |= BCMA_CORE_PCI_MDIODATA_READ;
 	v |= BCMA_CORE_PCI_MDIODATA_TA;
 
@@ -121,7 +121,7 @@ static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u16 device,
 		v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD);
 	}
 
-	v = BCMA_CORE_PCI_MDIODATA_START;
+	v |= BCMA_CORE_PCI_MDIODATA_START;
 	v |= BCMA_CORE_PCI_MDIODATA_WRITE;
 	v |= BCMA_CORE_PCI_MDIODATA_TA;
 	v |= data;
-- 
2.20.1


  parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200116172403.18149-1-sashal@kernel.org>
2020-01-16 17:18 ` [PATCH AUTOSEL 4.14 067/371] iwlwifi: mvm: avoid possible access out of array Sasha Levin
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 069/371] iwlwifi: mvm: fix A-MPDU reference assignment Sasha Levin
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 080/371] iwlwifi: mvm: fix RSS config command Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 251/371] libertas_tf: Use correct channel range in lbtf_geo_init Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 273/371] mac80211: minstrel_ht: fix per-group max throughput rate initialization Sasha Levin
2020-01-16 17:22 ` Sasha Levin [this message]
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 287/371] ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 299/371] ath10k: adjust skb length in ath10k_sdio_mbox_rx_packet Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 313/371] mac80211: accept deauth frames in IBSS mode Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 329/371] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 333/371] cw1200: Fix a signedness bug in cw1200_load_firmware() Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 338/371] rtlwifi: Remove unnecessary NULL check in rtl_regd_init Sasha Levin

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