diff options
author | Mark Brown <broonie@kernel.org> | 2024-02-19 16:58:41 +0000 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2024-02-19 16:58:41 +0000 |
commit | d68ce3aa8142333a96a071a9a0207f21c04e54cc (patch) | |
tree | 15754707ec571eb08c8d6308fe2459e46b8a5468 /drivers/xen/privcmd.c | |
parent | ec29a4d9b7c7329afc61e7932cb91e9b292b2b74 (diff) | |
parent | b401b621758e46812da61fa58a67c3fd8d91de0d (diff) |
regulator: Merge up v6.8-rc5
There are dependencies on the PWM fixes for some new work on the PWM
driver.
Diffstat (limited to 'drivers/xen/privcmd.c')
-rw-r--r-- | drivers/xen/privcmd.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 35b6e306026a..67dfa4778864 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -1223,18 +1223,13 @@ struct privcmd_kernel_ioreq *alloc_ioreq(struct privcmd_ioeventfd *ioeventfd) kioreq->ioreq = (struct ioreq *)(page_to_virt(pages[0])); mmap_write_unlock(mm); - size = sizeof(*ports) * kioreq->vcpus; - ports = kzalloc(size, GFP_KERNEL); - if (!ports) { - ret = -ENOMEM; + ports = memdup_array_user(u64_to_user_ptr(ioeventfd->ports), + kioreq->vcpus, sizeof(*ports)); + if (IS_ERR(ports)) { + ret = PTR_ERR(ports); goto error_kfree; } - if (copy_from_user(ports, u64_to_user_ptr(ioeventfd->ports), size)) { - ret = -EFAULT; - goto error_kfree_ports; - } - for (i = 0; i < kioreq->vcpus; i++) { kioreq->ports[i].vcpu = i; kioreq->ports[i].port = ports[i]; @@ -1256,7 +1251,7 @@ struct privcmd_kernel_ioreq *alloc_ioreq(struct privcmd_ioeventfd *ioeventfd) error_unbind: while (--i >= 0) unbind_from_irqhandler(irq_from_evtchn(ports[i]), &kioreq->ports[i]); -error_kfree_ports: + kfree(ports); error_kfree: kfree(kioreq); |