From b07cabb8361dc692522538205552b1b9dab134be Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 4 Mar 2022 10:35:04 +0300
Subject: [PATCH] USB: storage: ums-realtek: fix error code in
rts51x_read_mem()
Git-commit: b07cabb8361dc692522538205552b1b9dab134be
References: git-fixes
Patch-mainline: v5.18-rc1
The rts51x_read_mem() function should return negative error codes.
Currently if the kmalloc() fails it returns USB_STOR_TRANSPORT_ERROR (3)
which is treated as success by the callers.
Fixes: 065e60964e29 ("ums_realtek: do not use stack memory for DMA")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220304073504.GA26464@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/usb/storage/realtek_cr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 3789698d9d3c..0c423916d7bf 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -365,7 +365,7 @@ static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
buf = kmalloc(len, GFP_NOIO);
if (buf == NULL)
- return USB_STOR_TRANSPORT_ERROR;
+ return -ENOMEM;
usb_stor_dbg(us, "addr = 0x%x, len = %d\n", addr, len);
--
2.34.1