diff options
| author | Alexander Graf <agraf@suse.de> | 2013-08-29 02:41:59 +0400 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-08-29 02:41:59 +0400 |
| commit | bf550fc93d9855872a95e69e4002256110d89858 (patch) | |
| tree | 10876bb4304bffe54c4160a132e7b8de6577ac4e /drivers/pnp/manager.c | |
| parent | 7e48c101e0c53e6095c5f4f5e63d14df50aae8fc (diff) | |
| parent | cc2df20c7c4ce594c3e17e9cc260c330646012c8 (diff) | |
| download | linux-bf550fc93d9855872a95e69e4002256110d89858.tar.xz | |
Merge remote-tracking branch 'origin/next' into kvm-ppc-next
Conflicts:
mm/Kconfig
CMA DMA split and ZSWAP introduction were conflicting, fix up manually.
Diffstat (limited to 'drivers/pnp/manager.c')
| -rw-r--r-- | drivers/pnp/manager.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c index 95cebf0185de..9357aa779048 100644 --- a/drivers/pnp/manager.c +++ b/drivers/pnp/manager.c @@ -211,6 +211,12 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) res->start = -1; res->end = -1; + if (!rule->map) { + res->flags |= IORESOURCE_DISABLED; + pnp_dbg(&dev->dev, " dma %d disabled\n", idx); + goto __add; + } + for (i = 0; i < 8; i++) { if (rule->map & (1 << xtab[i])) { res->start = res->end = xtab[i]; @@ -218,11 +224,9 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) goto __add; } } -#ifdef MAX_DMA_CHANNELS - res->start = res->end = MAX_DMA_CHANNELS; -#endif - res->flags |= IORESOURCE_DISABLED; - pnp_dbg(&dev->dev, " disable dma %d\n", idx); + + pnp_dbg(&dev->dev, " couldn't assign dma %d\n", idx); + return -EBUSY; __add: pnp_add_dma_resource(dev, res->start, res->flags); |