linux-stable/drivers/virtio
Bjorn Helgaas 62ca18a089 virtio-mmio: Reject invalid IRQ 0 command line argument
The "virtio_mmio.device=" command line argument allows a user to specify
the size, address, and IRQ of a virtio device.  Previously the only
requirement for the IRQ was that it be an unsigned integer.

Zero is an unsigned integer but an invalid IRQ number, and after
a85a6c86c2 ("driver core: platform: Clarify that IRQ 0 is invalid"),
attempts to use IRQ 0 cause warnings.

If the user specifies IRQ 0, return failure instead of registering a device
with IRQ 0.

Fixes: a85a6c86c2 ("driver core: platform: Clarify that IRQ 0 is invalid")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2020-07-22 10:31:45 -05:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile virtio-mem: Paravirtualized memory hotplug 2020-06-04 15:36:52 -04:00
virtio.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
virtio_balloon.c virtio-balloon: Disable free page reporting if page poison reporting is not enabled 2020-06-04 15:36:51 -04:00
virtio_input.c virtio_input: pull in slab.h 2020-04-17 06:05:29 -04:00
virtio_mem.c virtio_mem: convert device block size into 64bit 2020-06-09 06:42:06 -04:00
virtio_mmio.c virtio-mmio: Reject invalid IRQ 0 command line argument 2020-07-22 10:31:45 -05:00
virtio_pci_common.c virtio-pci: check name when counting MSI-X vectors 2020-02-06 03:40:26 -05:00
virtio_pci_common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 78 2019-05-24 17:37:51 +02:00
virtio_pci_legacy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 78 2019-05-24 17:37:51 +02:00
virtio_pci_modern.c virtio: add VIRTIO_RING_NO_LEGACY 2020-06-02 02:45:13 -04:00
virtio_ring.c virtio_ring: Fix mem leak with vring_new_virtqueue() 2020-03-08 05:35:23 -04:00
virtio_vdpa.c virtio: introduce a vDPA based transport 2020-04-01 12:06:26 -04:00