diff mbox series

[4.19,151/338] USB: storage: ums-realtek: fix error code in rts51x_read_mem()

Message ID 20220414110843.201559759@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH April 14, 2022, 1:10 p.m. UTC 
From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit b07cabb8361dc692522538205552b1b9dab134be ]

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: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/storage/realtek_cr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 1d9ce9cbc831..9c2a1eda3f4f 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -364,7 +364,7 @@  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);