diff options
Diffstat (limited to 'drivers/net/lance.c')
| -rw-r--r-- | drivers/net/lance.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/lance.c b/drivers/net/lance.c index 5a7d1fee5..15f7f9ad7 100644 --- a/drivers/net/lance.c +++ b/drivers/net/lance.c @@ -377,6 +377,7 @@ __initfunc(void lance_probe1(int ioaddr)) unsigned char hpJ2405A = 0; /* HP ISA adaptor */ int hp_builtin = 0; /* HP on-board ethernet. */ static int did_version = 0; /* Already printed version info. */ + unsigned long flags; /* First we look for special cases. Check for HP's on-board ethernet by looking for 'HP' in the BIOS. @@ -563,8 +564,11 @@ __initfunc(void lance_probe1(int ioaddr)) outw(0x7f04, ioaddr+LANCE_DATA); /* Clear the memory error bits. */ if (request_dma(dma, chipname)) continue; + + flags=claim_dma_lock(); set_dma_mode(dma, DMA_MODE_CASCADE); enable_dma(dma); + release_dma_lock(flags); /* Trigger an initialization. */ outw(0x0001, ioaddr+LANCE_DATA); @@ -576,7 +580,9 @@ __initfunc(void lance_probe1(int ioaddr)) printk(", DMA %d.\n", dev->dma); break; } else { + flags=claim_dma_lock(); disable_dma(dma); + release_dma_lock(flags); free_dma(dma); } } @@ -649,8 +655,10 @@ lance_open(struct device *dev) /* The DMA controller is used as a no-operation slave, "cascade mode". */ if (dev->dma != 4) { + unsigned long flags=claim_dma_lock(); enable_dma(dev->dma); set_dma_mode(dev->dma, DMA_MODE_CASCADE); + release_dma_lock(flags); } /* Un-Reset the LANCE, needed only for the NE2100. */ @@ -1121,7 +1129,11 @@ lance_close(struct device *dev) outw(0x0004, ioaddr+LANCE_DATA); if (dev->dma != 4) + { + unsigned long flags=claim_dma_lock(); disable_dma(dev->dma); + release_dma_lock(flags); + } free_irq(dev->irq, dev); |