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| author | Vidya Sagar <vidyas@nvidia.com> | 2022-09-26 16:49:23 +0530 |
|---|---|---|
| committer | Lorenzo Pieralisi <lpieralisi@kernel.org> | 2022-10-27 10:14:23 +0200 |
| commit | 66110361281b2f7da0c8bd51eaf1f152f4236035 (patch) | |
| tree | 7bf3a580634f2531ec10cbb80fb86dd2b35b9aa1 | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
| download | linux-stable-66110361281b2f7da0c8bd51eaf1f152f4236035.tar.gz linux-stable-66110361281b2f7da0c8bd51eaf1f152f4236035.tar.bz2 linux-stable-66110361281b2f7da0c8bd51eaf1f152f4236035.zip | |
PCI: dwc: Fix n_fts[] array overrun
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>
| -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 c6725c519a47..9e4d96e5a3f5 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -641,7 +641,7 @@ 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); } |