From: Nadav Amit <namit@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
Cc: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_driver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -914,7 +914,7 @@ static struct uvc_entity *uvc_alloc_enti
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;
