diff options
| author | Philipp Stanner <phasta@kernel.org> | 2025-03-12 09:06:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-20 10:15:58 +0200 |
| commit | 869202291aa47523d73a2ad9ef9ecfdeba0be5e5 (patch) | |
| tree | 8702a4a2265ddfff7d6619b6114ec7b896f7c263 | |
| parent | 9707d0c932f41006a2701afc926b232b50e356b4 (diff) | |
PCI: Fix wrong length of devres array
commit f09d3937d400433080d17982bd1a540da53a156d upstream.
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+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 cd39479de7c7..3f2691888c35 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. */ |