diff options
Diffstat (limited to 'drivers/pnp')
| -rw-r--r-- | drivers/pnp/manager.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c index ea3eac2404c..5e43c471909 100644 --- a/drivers/pnp/manager.c +++ b/drivers/pnp/manager.c @@ -161,7 +161,7 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx) return 0; } -static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) +static void pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) { resource_size_t *start, *end; unsigned long *flags; @@ -173,15 +173,14 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) }; if (idx >= PNP_MAX_DMA) { - pnp_err - ("More than 2 dmas is incompatible with pnp specifications."); - /* pretend we were successful so at least the manager won't try again */ - return 1; + pnp_err("More than 2 dmas is incompatible with pnp " + "specifications."); + return; } /* check if this resource has been manually set, if so skip */ if (!(dev->res.dma_resource[idx].flags & IORESOURCE_AUTO)) - return 1; + return; start = &dev->res.dma_resource[idx].start; end = &dev->res.dma_resource[idx].end; @@ -191,19 +190,17 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) *flags |= rule->flags | IORESOURCE_DMA; *flags &= ~IORESOURCE_UNSET; - if (!rule->map) { - *flags |= IORESOURCE_DISABLED; - return 1; /* skip disabled resource requests */ - } - for (i = 0; i < 8; i++) { if (rule->map & (1 << xtab[i])) { *start = *end = xtab[i]; if (pnp_check_dma(dev, idx)) - return 1; + return; } } - return 0; +#ifdef MAX_DMA_CHANNELS + *start = *end = MAX_DMA_CHANNELS; +#endif + *flags |= IORESOURCE_UNSET | IORESOURCE_DISABLED; } /** @@ -330,8 +327,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum) irq = irq->next; } while (dma) { - if (!pnp_assign_dma(dev, dma, ndma)) - goto fail; + pnp_assign_dma(dev, dma, ndma); ndma++; dma = dma->next; } @@ -367,8 +363,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum) irq = irq->next; } while (dma) { - if (!pnp_assign_dma(dev, dma, ndma)) - goto fail; + pnp_assign_dma(dev, dma, ndma); ndma++; dma = dma->next; } |