kms: Return a negative error code in kms_bo_create()

The function returns returns 0 on success or a negative value in case of an
error, except when given invalid attributes in which case it returns the
positive EINVAL value. Replace that with -EINVAL to allow the caller to detect
errors with a < 0 check.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jakob Bornecrantz <wallbraker@gmail.com>

diff --git a/libkms/api.c b/libkms/api.c
index 4a05f3d..5befaa0 100644 (file)
--- a/libkms/api.c
+++ b/libkms/api.c
@@ -80,7 +80,7 @@ int kms_bo_create(struct kms_driver *kms, const unsigned *attr, struct kms_bo **
                        type = value;
                        break;
                default:
-                       return EINVAL;
+                       return -EINVAL;
                }
        }