diff options
| author | Nadav Amit <namit@vmware.com> | 2018-06-04 09:47:13 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-09 09:18:21 +0200 |
| commit | 04d3e9c446e2caf80b19e0332e58cec0a2693f7f (patch) | |
| tree | 330b6302ebce00c66a7e76b4814ae51568918850 | |
| parent | c2a035d7822ac8d2870cd6dbaadc1ab407713b83 (diff) | |
media: uvcvideo: Fix uvc_alloc_entity() allocation alignment
commit 89dd34caf73e28018c58cd193751e41b1f8bdc56 upstream.
The use of ALIGN() in uvc_alloc_entity() is incorrect, since the size of
(entity->pads) is not a power of two. As a stop-gap, until a better
solution is adapted, use roundup() instead.
Found by a static assertion. Compile-tested only.
Fixes: 4ffc2d89f38a ("uvcvideo: Register subdevices for each entity")
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index c0176f5d8200..c2939d080997 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -903,7 +903,7 @@ static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, unsigned int size; unsigned int i; - extra_size = ALIGN(extra_size, sizeof(*entity->pads)); + extra_size = roundup(extra_size, sizeof(*entity->pads)); num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads + num_inputs; |