6.6-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@linaro.org
commit 7f3da4b698bcc21a6df0e7f114af71d53a3e26ac upstream.
Return -ENOMEM if xen_irq_init() fails. currently the code returns an uninitialized variable or zero.
Fixes: 5dd9ad32d775 ("xen/events: drop xen_allocate_irqs_dynamic()") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Reviewed-by: Juergen Gross jgross@ssue.com Link: https://lore.kernel.org/r/3b9ab040-a92e-4e35-b687-3a95890a9ace@moroto.mounta... Signed-off-by: Juergen Gross jgross@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/xen/events/events_base.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -1099,8 +1099,10 @@ int xen_bind_pirq_msi_to_irq(struct pci_
for (i = 0; i < nvec; i++) { info = xen_irq_init(irq + i); - if (!info) + if (!info) { + ret = -ENOMEM; goto error_irq; + }
irq_set_chip_and_handler_name(irq + i, &xen_pirq_chip, handle_edge_irq, name);