From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Wed, 13 Aug 2025 14:52:49 +0000 (+0200)
Subject: usb: storage: realtek_cr: Use correct byte order for bcs->Residue
X-Git-Tag: v6.16.4~141
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=378da3668e4bd8252ddd53d199f2c7a7b3c28228;p=thirdparty%2Fkernel%2Fstable.git

usb: storage: realtek_cr: Use correct byte order for bcs->Residue

commit 98da66a70ad2396e5a508c4245367797ebc052ce upstream.

Since 'bcs->Residue' has the data type '__le32', convert it to the
correct byte order of the CPU using this driver when assigning it to
the local variable 'residue'.

Cc: stable <stable@kernel.org>
Fixes: 50a6cb932d5c ("USB: usb_storage: add ums-realtek driver")
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20250813145247.184717-3-thorsten.blum@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index c18dfa2ca034e..dc655bd640dc2 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -252,7 +252,7 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun,
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
-	residue = bcs->Residue;
+	residue = le32_to_cpu(bcs->Residue);
 	if (bcs->Tag != us->tag)
 		return USB_STOR_TRANSPORT_ERROR;