From 484e62252212c5b5fc62eaee5e4977143cb159c6 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 28 Nov 2025 10:17:57 +0300 Subject: [PATCH] gpib: Fix error code in ni_usb_write_registers() If ni_usb_receive_bulk_msg() succeeds but without reading 16 bytes, then the error code needs to be set. The current code returns success. Fixes: 4e127de14fa7 ("staging: gpib: Add National Instruments USB GPIB driver") Signed-off-by: Dan Carpenter Link: https://patch.msgid.link/aSlMpbE4IrQuBGFS@stanley.mountain Signed-off-by: Greg Kroah-Hartman --- drivers/gpib/ni_usb/ni_usb_gpib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpib/ni_usb/ni_usb_gpib.c b/drivers/gpib/ni_usb/ni_usb_gpib.c index 1f8412de9fa32..fdcaa6c00bfea 100644 --- a/drivers/gpib/ni_usb/ni_usb_gpib.c +++ b/drivers/gpib/ni_usb/ni_usb_gpib.c @@ -566,7 +566,7 @@ static int ni_usb_write_registers(struct ni_usb_priv *ni_priv, retval, bytes_read); ni_usb_dump_raw_block(in_data, bytes_read); kfree(in_data); - return retval; + return retval ?: -EINVAL; } mutex_unlock(&ni_priv->addressed_transfer_lock); -- 2.47.3