PCI: Fix wrong length of devres array

commit f09d3937d4 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: bbaff68bf4 ("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>

This commit is contained in:

Philipp Stanner

2025-03-12 09:06:34 +01:00

committed by

Greg Kroah-Hartman

parent 9707d0c932

commit 869202291a

1 changed files with 1 additions and 1 deletions

									
										drivers/pci/devres.c
									
		+1
		-1
	
												View File
												
				@@ -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. */