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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-08-06 14:28:42 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-29 09:47:35 -0700
commitb169395145ce013ad1ed3ee25878112f647ffd56 (patch)
tree7edc187abbf55e53cc4e44f8e3ca97f0c1d48ec1
parent0cbf39727e08f58246e763f8af2f8dcb8a9f648f (diff)
zd1201: do not use stack as URB transfer_buffer
commit 1206ff4ff9d2ef7468a355328bc58ac6ebf5be44 upstream. Patch fixes zd1201 not to use stack as URB transfer_buffer. URB buffers need to be DMA-able, which stack is not. Patch is only compile tested. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/wireless/zd1201.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 4941f201d6c8..b8ba1f925e75 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -98,10 +98,12 @@ static int zd1201_fw_upload(struct usb_device *dev, int apfw)
goto exit;
err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
- USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
+ USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT);
if (err < 0)
goto exit;
+ memcpy(&ret, buf, sizeof(ret));
+
if (ret & 0x80) {
err = -EIO;
goto exit;