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authorIan Abbott <abbotti@mev.co.uk>2022-06-07 20:18:19 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-10 16:21:23 +0300
commit242439f7e279d86b3f73b5de724bc67b2f8aeb07 (patch)
treee305168a0ce30eb5938c50c975009e935cadcaaa /drivers/comedi
parentf2906aa863381afb0015a9eb7fefad885d4e5a56 (diff)
downloadlinux-242439f7e279d86b3f73b5de724bc67b2f8aeb07.tar.xz
comedi: vmk80xx: fix expression for tx buffer size
The expression for setting the size of the allocated bulk TX buffer (`devpriv->usb_tx_buf`) is calling `usb_endpoint_maxp(devpriv->ep_rx)`, which is using the wrong endpoint (should be `devpriv->ep_tx`). Fix it. Fixes: a23461c47482 ("comedi: vmk80xx: fix transfer-buffer overflow") Cc: Johan Hovold <johan@kernel.org> Cc: stable@vger.kernel.org # 4.9+ Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20220607171819.4121-1-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/comedi')
-rw-r--r--drivers/comedi/drivers/vmk80xx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/comedi/drivers/vmk80xx.c b/drivers/comedi/drivers/vmk80xx.c
index 46023adc5395..4536ed43f65b 100644
--- a/drivers/comedi/drivers/vmk80xx.c
+++ b/drivers/comedi/drivers/vmk80xx.c
@@ -684,7 +684,7 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
if (!devpriv->usb_rx_buf)
return -ENOMEM;
- size = max(usb_endpoint_maxp(devpriv->ep_rx), MIN_BUF_SIZE);
+ size = max(usb_endpoint_maxp(devpriv->ep_tx), MIN_BUF_SIZE);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
if (!devpriv->usb_tx_buf)
return -ENOMEM;