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authorGreg Kroah-Hartman2019-04-21 23:18:44 +0200
committerGreg Kroah-Hartman2019-04-21 23:18:44 +0200
commit817de6b85914a3dda72b971c074d4d342965fba0 (patch)
treedf0a4563a04aadb8f8595f72392d66d65797c455 /arch/x86/include/asm/xen/hypercall.h
parentstaging: kpc2000: add initial set of Daktronics drivers (diff)
parentLinux 5.1-rc6 (diff)
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Merge 5.1-rc6 into staging-next
We want the fixes in here as well as this resolves an iio driver merge issue. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/include/asm/xen/hypercall.h')
-rw-r--r--arch/x86/include/asm/xen/hypercall.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index de6f0d59a24f..2863c2026655 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -206,6 +206,9 @@ xen_single_call(unsigned int call,
__HYPERCALL_DECLS;
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
+ if (call >= PAGE_SIZE / sizeof(hypercall_page[0]))
+ return -EINVAL;
+
asm volatile(CALL_NOSPEC
: __HYPERCALL_5PARAM
: [thunk_target] "a" (&hypercall_page[call])