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Subject: [media] v4l2: bfin: Ensure delete and reinit list entry on NOMMU architecture Author: Sonic Zhang <[email protected]> Date: Wed Jul 23 06:57:15 2014 -0300 On NOMMU architecture page fault is not triggered if a deleted list entry is accessed without reinit. Signed-off-by: Sonic Zhang <[email protected]> Acked-by: Scott Jiang <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/platform/blackfin/bfin_capture.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=7ba3c21c17d0fec397dc5e0337a3548eb14220bd diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c index 7c70d51..9b5daa6 100644 --- a/drivers/media/platform/blackfin/bfin_capture.c +++ b/drivers/media/platform/blackfin/bfin_capture.c @@ -446,7 +446,7 @@ static void bcap_stop_streaming(struct vb2_queue *vq) while (!list_empty(&bcap_dev->dma_queue)) { bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, struct bcap_buffer, list); - list_del(&bcap_dev->cur_frm->list); + list_del_init(&bcap_dev->cur_frm->list); vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_ERROR); } } @@ -533,7 +533,7 @@ static irqreturn_t bcap_isr(int irq, void *dev_id) } bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, struct bcap_buffer, list); - list_del(&bcap_dev->cur_frm->list); + list_del_init(&bcap_dev->cur_frm->list); } else { /* clear error flag, we will get a new frame */ if (ppi->err) @@ -583,7 +583,7 @@ static int bcap_streamon(struct file *file, void *priv, bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, struct bcap_buffer, list); /* remove buffer from the dma queue */ - list_del(&bcap_dev->cur_frm->list); + list_del_init(&bcap_dev->cur_frm->list); addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0); /* update DMA address */ ppi->ops->update_addr(ppi, (unsigned long)addr); _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
