Commit 1d5e4035 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'irq-msi-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull MSI interrupt update from Thomas Gleixner:
 "A small update for the MSI interrupt library to check for callers
  which fail to provide the mandatory irq_write_msi_msg() callback,
  which prevents a NULL pointer dereference later"

* tag 'irq-msi-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/msi-lib: Refuse initialization when irq_write_msi_msg() is missing
parents c0ecb2a9 aa80869b

drivers/irqchip/irq-msi-lib.c

+3 −0
Original line number Diff line number Diff line
@@ -48,6 +48,9 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, 
		return false;

	}



	if (WARN_ON_ONCE(!chip->irq_write_msi_msg))

		return false;



	required_flags = pops->required_flags;



	/* Is the target domain bus token supported? */