linux-kernel - [PATCH] staging: vme_user: print more detailed infomation when an error occurs

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Date: Wed, 27 Dec 2023 23:47:39 +0800
From: Piro Yang <piroyangg@...il.com>
To: Greg KH <gregkh@...uxfoundation.org>,
	Julia Lawall <julia.lawall@...ia.fr>
Cc: Piro Yang <piroyangg@...il.com>,
	linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] staging: vme_user: print more detailed infomation when an error occurs

when the slave_get function pointer belongs to the struct vme_bridge
member is NULL, it prompts that the detailed function name
"vme_slave_set" equivalent to __func__ not supported.

it is similar to the vme_slave_get function:
when vme_bridge->slave_set function pointer is NULL to print detailed
function name by using __func__.

Signed-off-by: Piro Yang <piroyangg@...il.com>
---
 drivers/staging/vme_user/vme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vme_user/vme.c b/drivers/staging/vme_user/vme.c
index 9bc2d35405af..e9461a7a7ab8 100644
--- a/drivers/staging/vme_user/vme.c
+++ b/drivers/staging/vme_user/vme.c
@@ -340,7 +340,7 @@ 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");
+		dev_err(bridge->parent, "%s not supported\n", __func__);
 		return -EINVAL;
 	}
 
-- 
2.25.1