diff options
| author | Jim Quinlan <james.quinlan@broadcom.com> | 2020-11-02 15:57:12 -0500 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-11-20 17:04:37 +0000 |
| commit | ddaff0af653136ee1e0b49116ecf2988c2fc64ca (patch) | |
| tree | 6ef69057494bf978156b8a662a78432caeba3edf /drivers/pci | |
| parent | f8394f232b1eab649ce2df5c5f15b0e528c92091 (diff) | |
PCI: brcmstb: Initialize "tmp" before use
The variable 'tmp' is used multiple times in the brcm_pcie_setup()
function. One such usage did not initialize 'tmp' to the current value
of the target register. By luck the mistake does not currently affect
behavior; regardless 'tmp' is now initialized properly.
Suggested-by: Rafał Miłecki <zajec5@gmail.com>
Link: https://lore.kernel.org/r/20201102205712.23332-1-james.quinlan@broadcom.com
Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")
Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/pcie-brcmstb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index bea86899bd5d..9c3d2982248d 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -893,6 +893,7 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie) burst = 0x2; /* 512 bytes */ /* Set SCB_MAX_BURST_SIZE, CFG_READ_UR_MODE, SCB_ACCESS_EN */ + tmp = readl(base + PCIE_MISC_MISC_CTRL); u32p_replace_bits(&tmp, 1, PCIE_MISC_MISC_CTRL_SCB_ACCESS_EN_MASK); u32p_replace_bits(&tmp, 1, PCIE_MISC_MISC_CTRL_CFG_READ_UR_MODE_MASK); u32p_replace_bits(&tmp, burst, PCIE_MISC_MISC_CTRL_MAX_BURST_SIZE_MASK); |