V4L/DVB (9972): v4l: usbvideo, fix module ref count check

usbvideo_ClientIncModCount may return value < 0 in the case of error, not > 0.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/usbvideo/usbvideo.c b/drivers/media/video/usbvideo/usbvideo.c
index a42049d..148a1f9 100644 (file)
--- a/drivers/media/video/usbvideo/usbvideo.c
+++ b/drivers/media/video/usbvideo/usbvideo.c
@@ -1123,7 +1123,7 @@ static int usbvideo_v4l_open(struct inode *inode, struct file *file)
        if (uvd->debug > 1)
                dev_info(&uvd->dev->dev, "%s($%p)\n", __func__, dev);
 
-       if (0 < usbvideo_ClientIncModCount(uvd))
+       if (usbvideo_ClientIncModCount(uvd) < 0)
                return -ENODEV;
        mutex_lock(&uvd->lock);