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Only call kvtop on non-null id_maddr's...

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This commit is contained in:
Peter Wemm 1999-04-26 12:49:39 +00:00
parent e306e8ea66
commit 3bfdd012d8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=46093
1 changed files with 8 additions and 3 deletions
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11
sys/i386/isa/isa_compat.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: isa_compat.c,v 1.4 1999/04/19 18:03:51 peter Exp $
* $Id: isa_compat.c,v 1.6 1999/04/24 07:04:51 peter Exp $
*/
#include <sys/param.h>
@ -179,8 +179,13 @@ isa_compat_probe(device_t dev)
isa_set_irq(dev, ffs(dvp->id_irq) - 1);
if (dvp->id_drq != isa_get_drq(dev))
isa_set_drq(dev, dvp->id_drq);
if (dvp->id_maddr != maddr)
isa_set_maddr(dev, (int)kvtop(dvp->id_maddr));
if (dvp->id_maddr != maddr) {
maddr = dvp->id_maddr;
if (maddr != NULL)
isa_set_maddr(dev, kvtop(maddr));
else
isa_set_maddr(dev, (int)maddr);
}
if (dvp->id_msize != isa_get_msize(dev))
isa_set_msize(dev, dvp->id_msize);
return 0;