diff options
| author | Vidya Sagar <vidyas@nvidia.com> | 2022-09-26 16:49:23 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 13:14:21 +0100 |
| commit | a00a7ac25114e2ef84dc0546c76e9e89403038ab (patch) | |
| tree | ded6301b07f93cb4f6eafad2eac4ed611d03a53d /drivers/pci | |
| parent | 10ae636115b5244bce223766f74c2826729ee494 (diff) | |
PCI: dwc: Fix n_fts[] array overrun
[ Upstream commit 66110361281b2f7da0c8bd51eaf1f152f4236035 ]
commit aeaa0bfe89654 ("PCI: dwc: Move N_FTS setup to common setup")
incorrectly uses pci->link_gen in deriving the index to the
n_fts[] array also introducing the issue of accessing beyond the
boundaries of array for greater than Gen-2 speeds. This change fixes
that issue.
Link: https://lore.kernel.org/r/20220926111923.22487-1-vidyas@nvidia.com
Fixes: aeaa0bfe8965 ("PCI: dwc: Move N_FTS setup to common setup")
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index e408ebf5bd73..00972a7bc976 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -730,7 +730,7 @@ void dw_pcie_setup(struct dw_pcie *pci) if (pci->n_fts[1]) { val = dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL); val &= ~PORT_LOGIC_N_FTS_MASK; - val |= pci->n_fts[pci->link_gen - 1]; + val |= pci->n_fts[1]; dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, val); } |