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| author |   Philipp Stanner <phasta@kernel.org> | 2025-03-12 09:06:34 +0100 |
|---|---|---|
| committer |   Krzysztof Wilczyński <kwilczynski@kernel.org> | 2025-03-14 09:22:24 +0000 |
| commit | f09d3937d400433080d17982bd1a540da53a156d (patch) | |
| tree | 347803d595795367ab3dab330988ade84925eb8a | |
| parent | Linux 6.14-rc1 (diff) | |
| download | wireguard-linux-f09d3937d400433080d17982bd1a540da53a156d.tar.xz wireguard-linux-f09d3937d400433080d17982bd1a540da53a156d.zip | |
PCI: Fix wrong length of devres array
The array for the iomapping cookie addresses has a length of
PCI_STD_NUM_BARS. This constant, however, only describes standard BARs;
while PCI can allow for additional, special BARs.
The total number of PCI resources is described by constant
PCI_NUM_RESOURCES, which is also used in, e.g., pci_select_bars().
Thus, the devres array has so far been too small.
Change the length of the devres array to PCI_NUM_RESOURCES.
Link: https://lore.kernel.org/r/20250312080634.13731-3-phasta@kernel.org
Fixes: bbaff68bf4a4 ("PCI: Add managed partial-BAR request and map infrastructure")
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Cc: stable@vger.kernel.org # v6.11+
| -rw-r--r-- | drivers/pci/devres.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c index 3431a7df3e0d..728ed0c7f70a 100644 --- a/drivers/pci/devres.c +++ b/drivers/pci/devres.c @@ -40,7 +40,7 @@ * Legacy struct storing addresses to whole mapped BARs. */ struct pcim_iomap_devres { - void __iomem *table[PCI_STD_NUM_BARS]; + void __iomem *table[PCI_NUM_RESOURCES]; }; /* Used to restore the old INTx state on driver detach. */ |