Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-25 05:32:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

- Cleanup the firmware node for the new IRQ MSI domain properly, to

Browse Source 
avoid leaking memory
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmPWd70ACgkQEsHwGGHe
 VUpTgxAAjKo7kjhyE9PjKA8tJ5pv6I/21tieu/JAmRyb8AVkhi21elXJaRoEPW4k
 2TuSd0WMxZeoRJ1N366HcGPZcsldKN45v3xXEv1e3XSL6ZTAIFsYvwni6adwVocS
 ztnZBrMuHf1KZW/6ES956qGmWsum0rYcU2sr0kvnS9ihPiXJsbeLfNF1VXPwaH2y
 DTnTxgl/QtuipSQYOUvLSk1XBduvE+Wx8kE1S6TrdlWE9qsD/Jn1Jn7btaLQeHfs
 27AXTNGYnVHeRZSVy6d38dIwU4Gh6LcLMFfTtNENIqTVCUfc/QcAb/gItDF0NvIr
 fgKbkdmI7jc0rIfLGlBUM8WZ0OaxopFwvchVywjcogDpCfLvJbgR7JplEKTfltgz
 62IjvTF6vXUCcjySwu/C48EE2G7CWL0FtIcJofZsI0yTeHESkwFf1r5eOjnTV2ao
 M2QYGeToRtk7z9vb+pa0ZttD55TKXQKZDBv+lBRKLTy8SeIzlExJswIAuGTpWuKR
 ntwrdtekyM2HNir/l9ad1X2mjVblivEEv1hLMpsxPsthigWXDr+PZtQIxHCao8wj
 aKY4bI0F1AXByuKhQAwX/RVHUmB+AGrzJ/M5Fdj+ealQ6Nk+xCrPyTX2qDmveiSF
 NlQZpGCxV+gI/8q9YU4coJm1AioT8TSFsMxaufGZCreqqaWBXl0=
 =qrIZ
 -----END PGP SIGNATURE-----

Merge tag 'irq_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Borislav Petkov:

 - Cleanup the firmware node for the new IRQ MSI domain properly, to
   avoid leaking memory

* tag 'irq_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/msi: Free the fwnode created by msi_create_device_irq_domain()
This commit is contained in:
Linus Torvalds 2023-01-29 11:26:49 -08:00
commit ab072681ea
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/irq/irqdomain.c
View File

@ -114,7 +114,7 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode)
{
struct irqchip_fwid *fwid;
if (WARN_ON(!is_fwnode_irqchip(fwnode)))
if (!fwnode || WARN_ON(!is_fwnode_irqchip(fwnode)))
return;
fwid = container_of(fwnode, struct irqchip_fwid, fwnode);

6
kernel/irq/msi.c
View File

@ -1000,7 +1000,7 @@ bool msi_create_device_irq_domain(struct device *dev, unsigned int domid,
fail:
msi_unlock_descs(dev);
free_fwnode:
kfree(fwnode);
irq_domain_free_fwnode(fwnode);
free_bundle:
kfree(bundle);
return false;
@ -1013,6 +1013,7 @@ free_bundle:
*/
void msi_remove_device_irq_domain(struct device *dev, unsigned int domid)
{
struct fwnode_handle *fwnode = NULL;
struct msi_domain_info *info;
struct irq_domain *domain;
@ -1025,7 +1026,10 @@ void msi_remove_device_irq_domain(struct device *dev, unsigned int domid)
dev->msi.data->__domains[domid].domain = NULL;
info = domain->host_data;
if (irq_domain_is_msi_device(domain))
fwnode = domain->fwnode;
irq_domain_remove(domain);
irq_domain_free_fwnode(fwnode);
kfree(container_of(info, struct msi_domain_template, info));
unlock: