Since moving the message buffers off the stack, the dynamically
allocated get-prop-descriptor request buffer is incorrectly sized due to
using the pointer rather than request-struct size when creating the
operation.

Fortunately, the pointer size is always larger than this one-byte
request, but this could still cause trouble on the remote end due to the
unexpected message size.

Fixes: 9d15134d067e ("greybus: power_supply: rework get descriptors")
Cc: stable <sta...@vger.kernel.org>     # 4.9
Cc: Rui Miguel Silva <rui.si...@linaro.org>
Signed-off-by: Johan Hovold <jo...@kernel.org>
---
 drivers/staging/greybus/power_supply.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/power_supply.c 
b/drivers/staging/greybus/power_supply.c
index 0529e5628c24..ae5c0285a942 100644
--- a/drivers/staging/greybus/power_supply.c
+++ b/drivers/staging/greybus/power_supply.c
@@ -520,7 +520,7 @@ static int gb_power_supply_prop_descriptors_get(struct 
gb_power_supply *gbpsy)
 
        op = gb_operation_create(connection,
                                 GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS,
-                                sizeof(req), sizeof(*resp) + props_count *
+                                sizeof(*req), sizeof(*resp) + props_count *
                                 sizeof(struct gb_power_supply_props_desc),
                                 GFP_KERNEL);
        if (!op)
-- 
2.21.0

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