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Properly handle failure to allocate isadma bounce buffer

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This commit is contained in:
Poul-Henning Kamp 2004-10-22 19:01:10 +00:00
parent cc62efa527
commit 1ef0fd8224
1 changed files with 6 additions and 2 deletions
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8
sys/dev/fdc/fdc.c
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@ -1723,10 +1723,14 @@ fdc_attach(device_t dev)
}
if (!(fdc->flags & FDC_NODMA)) {
error = isa_dma_acquire(fdc->dmachan);
if (!error) {
error = isa_dma_init(fdc->dmachan,
MAX_BYTES_PER_CYL, M_WAITOK);
if (error)
isa_dma_release(fdc->dmachan);
}
if (error)
return (error);
/* XXX no error return */
isa_dmainit(fdc->dmachan, MAX_BYTES_PER_CYL);
}
fdc->fdcu = device_get_unit(dev);
fdc->flags |= FDC_NEEDS_RESET;