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| author | Henrik Rydberg <rydberg@euromail.se> | 2012-10-13 12:20:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-17 13:41:34 -0700 |
| commit | 014639003c77a51fc319c9fdf225e7747cb6e18d (patch) | |
| tree | 6d7b1bd91e3fe37b70953b6786310482095a0fa4 | |
| parent | 2c78040c3e2735b8286bbb848db0372b8d408e2d (diff) | |
| download | linux-014639003c77a51fc319c9fdf225e7747cb6e18d.tar.gz linux-014639003c77a51fc319c9fdf225e7747cb6e18d.tar.bz2 linux-014639003c77a51fc319c9fdf225e7747cb6e18d.zip | |
usbdevfs: Fix broken scatter-gather transfer
The handling of large output bulk transfers is broken; the same user
page is read over and over again. Fixed with this patch.
Cc: stable <stable@vger.kernel.org>
Acked-by: Peter Stuge <peter@stuge.se>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/devio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index e0356cb859b5..b78fbe222b72 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1348,6 +1348,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, ret = -EFAULT; goto error; } + uurb->buffer += u; } totlen -= u; } |