svn commit: r258505 - stable/10/sys/geom/nop

Mateusz Guzik mjg at FreeBSD.org
Sat Nov 23 23:54:39 UTC 2013


Author: mjg
Date: Sat Nov 23 23:54:38 2013
New Revision: 258505
URL: http://svnweb.freebsd.org/changeset/base/258505

Log:
  MFC r256951:
  gnop: make sure that newly allocated memory for softc is zeroed
  
  This prevents mtx_init from encountering non-zeros and panicking
  the kernel as a result.
  
  Approved by:	re

Modified:
  stable/10/sys/geom/nop/g_nop.c
Directory Properties:
  stable/10/sys/   (props changed)

Modified: stable/10/sys/geom/nop/g_nop.c
==============================================================================
--- stable/10/sys/geom/nop/g_nop.c	Sat Nov 23 18:58:17 2013	(r258504)
+++ stable/10/sys/geom/nop/g_nop.c	Sat Nov 23 23:54:38 2013	(r258505)
@@ -214,7 +214,7 @@ g_nop_create(struct gctl_req *req, struc
 		}
 	}
 	gp = g_new_geomf(mp, "%s", name);
-	sc = g_malloc(sizeof(*sc), M_WAITOK);
+	sc = g_malloc(sizeof(*sc), M_WAITOK | M_ZERO);
 	sc->sc_offset = offset;
 	sc->sc_explicitsize = explicitsize;
 	sc->sc_error = ioerror;


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