[PATCH 046/104] KVM: Remove stat_set from debugfs

[Avi Kivity]

From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

We shouldn't define stat_set on the debug attributes, since that will
cause silent failure on writing: without a set argument, userspace
will get -EACCESS.

Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxxxx>
---
 drivers/kvm/kvm_main.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 55639ac..25d76a5 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -3017,11 +3017,7 @@ static u64 stat_get(void *_offset)
 	return total;
 }
 
-static void stat_set(void *offset, u64 val)
-{
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(stat_fops, stat_get, stat_set, "%llu\n");
+DEFINE_SIMPLE_ATTRIBUTE(stat_fops, stat_get, NULL, "%llu\n");
 
 static __init void kvm_init_debug(void)
 {
-- 
1.5.3

-
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