From: Dan Carpenter dan.carpenter@oracle.com
commit a70aa7dc60099bbdcbd6faca42a915d80f31161e upstream.
This should return -ENOMEM instead of 0 if the kmalloc() fails.
Fixes: 3f5429746d91 ("USB: Moschip 7840 USB-Serial Driver") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/serial/mos7840.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 4a7bd26841af0..c78dfb7fd3948 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1340,8 +1340,10 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, if (urb->transfer_buffer == NULL) { urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC); - if (!urb->transfer_buffer) + if (!urb->transfer_buffer) { + bytes_sent = -ENOMEM; goto exit; + } } transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);