diff mbox series

[V2] bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA

Message ID 20190827081620.20998-1-colin.king@canonical.com (mailing list archive)
State Accepted
Commit 420c20be08a4597404d272ae9793b642401146eb
Delegated to: Kalle Valo
Headers show
Series [V2] bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA | expand

Commit Message

Colin King Aug. 27, 2019, 8:16 a.m. UTC 
From: Colin Ian King <colin.king@canonical.com>

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>
---

V2: fix bcma_pcie_mdio_write as well as bcma_pcie_mdio_read

---
 drivers/bcma/driver_pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Kalle Valo Sept. 3, 2019, 1:44 p.m. UTC | #1 
Colin King <colin.king@canonical.com> wrote:

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

Patch applied to wireless-drivers-next.git, thanks.

420c20be08a4 bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
diff mbox series

Patch

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;