[PATCH 6.12 453/567] net: usb: sr9700: fix incorrect command used to write single register

Greg Kroah-Hartman
2026-01-06T17:39:22Z

From: Ethan Nelson-Moore <enelsonmoore@gmail.com>

commit fa0b198be1c6775bc7804731a43be5d899d19e7a upstream.

This fixes the device failing to initialize with "error reading MAC
address" for me, probably because the incorrect write of NCR_RST to
SR_NCR is not actually resetting the device.

Fixes: c9b37458e95629b1d1171457afdcc1bf1eb7881d ("USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support")
Cc: stable@vger.kernel.org
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20251221082400.50688-1-enelsonmoore@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/usb/sr9700.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/usb/sr9700.c
+++ b/drivers/net/usb/sr9700.c
@@ -52,7 +52,7 @@ static int sr_read_reg(struct usbnet *de

static int sr_write_reg(struct usbnet *dev, u8 reg, u8 value)
{
- return usbnet_write_cmd(dev, SR_WR_REGS, SR_REQ_WR_REG,
+ return usbnet_write_cmd(dev, SR_WR_REG, SR_REQ_WR_REG,
value, reg, NULL, 0);
}

@@ -65,7 +65,7 @@ static void sr_write_async(struct usbnet

static void sr_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
{
- usbnet_write_cmd_async(dev, SR_WR_REGS, SR_REQ_WR_REG,
+ usbnet_write_cmd_async(dev, SR_WR_REG, SR_REQ_WR_REG,
value, reg, NULL, 0);
}