From: Philipp Stanner Date: Wed, 12 Mar 2025 08:06:34 +0000 (+0100) Subject: PCI: Fix wrong length of devres array X-Git-Tag: block-6.15-20250403~40^2~29^2~1 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f09d3937d400433080d17982bd1a540da53a156d;p=linux-block.git 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 Signed-off-by: Bjorn Helgaas Signed-off-by: Krzysztof Wilczyński Cc: stable@vger.kernel.org # v6.11+ --- 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. */