v4l2: v4l2_camera: Return int in getBufferFd()

V4L2Camera::getBufferFd() returns FileDescriptor. However, the
file descriptor is still owned by V4L2Camera. It should rather
return an integer to represent V4L2Camera doesn't have the
ownership of the file descriptor.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 79bc880d..c1375777 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -114,14 +114,14 @@ void *V4L2CameraProxy::mmap(void *addr, size_t length, int prot, int flags,
 		return MAP_FAILED;
 	}
 
-	FileDescriptor fd = vcam_->getBufferFd(index);
-	if (!fd.isValid()) {
+	int fd = vcam_->getBufferFd(index);
+	if (fd < 0) {
 		errno = EINVAL;
 		return MAP_FAILED;
 	}
 
 	void *map = V4L2CompatManager::instance()->fops().mmap(addr, length, prot,
-							       flags, fd.fd(), 0);
+							       flags, fd, 0);
 	if (map == MAP_FAILED)
 		return map;