1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c
index 2b74b0ab1477..db813e071ce6 100644
--- a/drivers/media/video/ivtv/ivtv-fileops.c
+++ b/drivers/media/video/ivtv/ivtv-fileops.c
@@ -587,7 +587,7 @@ retry:
         since we may get here before the stream has been fully set-up */
         if (mode == OUT_YUV && s->q_full.length == 0 && itv->dma_data_req_size) {
                 while (count >= itv->dma_data_req_size) {
-                        if (!ivtv_yuv_udma_stream_frame (itv, (void *)user_buf)) {
+                        if (!ivtv_yuv_udma_stream_frame (itv, (void __user *)user_buf)) {
                                 bytes_written += itv->dma_data_req_size;
                                 user_buf += itv->dma_data_req_size;
                                 count -= itv->dma_data_req_size;
@@ -987,6 +987,8 @@ int ivtv_v4l2_open(struct inode *inode, struct file *filp)
         /* Find which card this open was on */
         spin_lock(&ivtv_cards_lock);
         for (x = 0; itv == NULL && x < ivtv_cards_active; x++) {
+                if (ivtv_cards[x] == NULL)
+                        continue;
                 /* find out which stream this open was on */
                 for (y = 0; y < IVTV_MAX_STREAMS; y++) {
                         s = &ivtv_cards[x]->streams[y];