diff options
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_dmem_genirq.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index 7be8d0421ca..bbdf92559e3 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -62,8 +62,6 @@ static int uio_dmem_genirq_open(struct uio_info *info, struct inode *inode) (dma_addr_t *)&uiomem->addr, GFP_KERNEL); if (!addr) { uiomem->addr = DMEM_MAP_ERROR; - ret = -ENOMEM; - break; } priv->dmem_region_vaddr[dmem_region++] = addr; ++uiomem; @@ -93,11 +91,13 @@ static int uio_dmem_genirq_release(struct uio_info *info, struct inode *inode) while (!priv->refcnt && uiomem < &priv->uioinfo->mem[MAX_UIO_MAPS]) { if (!uiomem->size) break; - - dma_free_coherent(&priv->pdev->dev, uiomem->size, - priv->dmem_region_vaddr[dmem_region++], - uiomem->addr); + if (priv->dmem_region_vaddr[dmem_region]) { + dma_free_coherent(&priv->pdev->dev, uiomem->size, + priv->dmem_region_vaddr[dmem_region], + uiomem->addr); + } uiomem->addr = DMEM_MAP_ERROR; + ++dmem_region; ++uiomem; } |