From: Philipp Stanner Date: Wed, 12 Mar 2025 08:06:34 +0000 (+0100) Subject: PCI: Fix wrong length of devres array X-Git-Tag: v6.13.12~27 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1bc27d6815f996fa852dbd35231cbe242ca190bf;p=thirdparty%2Fkernel%2Fstable.git 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 Signed-off-by: Bjorn Helgaas Signed-off-by: Krzysztof Wilczyński Cc: stable@vger.kernel.org # v6.11+ Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c index 51ef3e591d343..1900003d4564d 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. */