Merge tag 'for-linus-5.18-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"A simple cleanup patch and a refcount fix for Xen on Arm"
* tag 'for-linus-5.18-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
arm/xen: Fix some refcount leaks
xen: Convert kmap() to kmap_local_page()
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index ec5b082..07eb69f 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -337,12 +337,15 @@
if (!nr_reg) {
pr_err("No extended regions are found\n");
+ of_node_put(np);
return -EINVAL;
}
regs = kcalloc(nr_reg, sizeof(*regs), GFP_KERNEL);
- if (!regs)
+ if (!regs) {
+ of_node_put(np);
return -ENOMEM;
+ }
/*
* Create resource from extended regions provided by the hypervisor to be
@@ -403,8 +406,8 @@
*res = &xen_resource;
err:
+ of_node_put(np);
kfree(regs);
-
return rc;
}
#endif
@@ -424,8 +427,10 @@
if (of_address_to_resource(xen_node, GRANT_TABLE_INDEX, &res)) {
pr_err("Xen grant table region is not found\n");
+ of_node_put(xen_node);
return;
}
+ of_node_put(xen_node);
xen_grant_frames = res.start;
}
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index 4849f94..55acb32 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -178,9 +178,9 @@
unsigned long addr;
if (gref->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) {
- uint8_t *tmp = kmap(gref->page);
+ uint8_t *tmp = kmap_local_page(gref->page);
tmp[gref->notify.pgoff] = 0;
- kunmap(gref->page);
+ kunmap_local(tmp);
}
if (gref->notify.flags & UNMAP_NOTIFY_SEND_EVENT) {
notify_remote_via_evtchn(gref->notify.event);
