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From 524ea8027660c207f4b8cf48068a38a429d29cef Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Wed, 13 Feb 2019 12:51:03 +0000
Subject: [PATCH 354/782] staging: mmal-vchiq: If the VPU returns an error,
don't negate it
There is an enum for the errors that the VPU can return.
port_parameter_get was negating that value, but also using -EINVAL
from the Linux error codes.
Pass the VPU error code as positive values. Should the function
need to pass a Linux failure, then return that as negative.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
---
drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -1401,7 +1401,8 @@ static int port_parameter_get(struct vch
goto release_msg;
}
- ret = -rmsg->u.port_parameter_get_reply.status;
+ ret = rmsg->u.port_parameter_get_reply.status;
+
/* port_parameter_get_reply.size includes the header,
* whilst *value_size doesn't.
*/
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