Silently return NULL from devclass_get_device if dc == NULL. The caller
should be handling NULL returns already. Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=47355
@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* SUCH DAMAGE.
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*
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*
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* $Id: subr_bus.c,v 1.22 1999/05/14 09:13:43 dfr Exp $
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* $Id: subr_bus.c,v 1.23 1999/05/14 11:22:42 dfr Exp $
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*/
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*/
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#include <sys/param.h>
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#include <sys/param.h>
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@ -409,7 +409,7 @@ devclass_get_name(devclass_t dc)
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device_t
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device_t
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devclass_get_device(devclass_t dc, int unit)
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devclass_get_device(devclass_t dc, int unit)
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{
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{
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if (unit < 0 || unit >= dc->maxunit)
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if (dc == NULL || unit < 0 || unit >= dc->maxunit)
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return NULL;
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return NULL;
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return dc->devices[unit];
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return dc->devices[unit];
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}
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}
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