Author: andrew
Date: Mon May 9 12:24:39 2016
New Revision: 299257
URL: https://svnweb.freebsd.org/changeset/base/299257
Log:
Check malloc succeeded in pic_create, with M_NOWAIT it may return NULL.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/kern/subr_intr.c
Modified: head/sys/kern/subr_intr.c
==============================================================================
--- head/sys/kern/subr_intr.c Mon May 9 11:52:57 2016 (r299256)
+++ head/sys/kern/subr_intr.c Mon May 9 12:24:39 2016 (r299257)
@@ -871,6 +871,10 @@ pic_create(device_t dev, intptr_t xref)
return (pic);
}
pic = malloc(sizeof(*pic), M_INTRNG, M_NOWAIT | M_ZERO);
+ if (pic == NULL) {
+ mtx_unlock(&pic_list_lock);
+ return (NULL);
+ }
pic->pic_xref = xref;
pic->pic_dev = dev;
SLIST_INSERT_HEAD(&pic_list, pic, pic_next);
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