tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

PCI: Fix wrong length of devres array

Browse Source 
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: 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
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/pci/devres.c
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. */