pcnet32: Use pci_resource_len to validate PCI resource

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[ Upstream commit 66c3f05ddc ]

pci_resource_start() is not a good indicator to determine if a PCI
resource exists or not, since the resource may start at address 0.
This is seen when trying to instantiate the driver in qemu for riscv32
or riscv64.

pci 0000:00:01.0: reg 0x10: [io  0x0000-0x001f]
pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x0000001f]
...
pcnet32: card has no PCI IO resources, aborting

Use pci_resouce_len() instead.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Guenter Roeck 2021-04-05 21:29:22 -07:00 • committed by Greg Kroah-Hartman

parent 248b9b61b9

commit 2e08d9a568

1 changed files with 3 additions and 2 deletions

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drivers/net/ethernet/amd/pcnet32.c

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