[PATCH] staging:vme_user:fix the issue of using the wrong error code

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1. the error code of ENOSYS indicates Invalid system call number,
   but there is not system call

2. unified the logging error message, when slave_set func is NULL

Signed-off-by: Piro Yang <piroyangg@xxxxxxxxx>
---
 drivers/staging/vme_user/vme.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vme_user/vme.c b/drivers/staging/vme_user/vme.c
index 5c416c31ec57..e9461a7a7ab8 100644
--- a/drivers/staging/vme_user/vme.c
+++ b/drivers/staging/vme_user/vme.c
@@ -340,8 +340,8 @@ int vme_slave_set(struct vme_resource *resource, int enabled,
 	image = list_entry(resource->entry, struct vme_slave_resource, list);
 
 	if (!bridge->slave_set) {
-		dev_err(bridge->parent, "Function not supported\n");
-		return -ENOSYS;
+		dev_err(bridge->parent, "%s not supported\n", __func__);
+		return -EINVAL;
 	}
 
 	if (!(((image->address_attr & aspace) == aspace) &&
-- 
2.25.1





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