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 --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c index d955761fce6f..d9d69637d614 100644 --- a/drivers/usb/storage/realtek_cr.c +++ b/drivers/usb/storage/realtek_cr.c @@ -377,7 +377,7 @@ 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);