On Mon, Jun 18, 2018 at 10:48:18AM +0000, Heinrich.Toews@xxxxxxxx wrote: > If an attached bb device was removed before the actual mtd device > the code would try due to a missing pointer reset to access > the no more present bb device handle which leads to a page fault. > > This bug was made visible by commit "7649473 mtd: nand: remove > automatically created bb devices" which relys on a correct > mtd->cdev_bb handling. > > Signed-off-by: Heinrich Toews <heinrich.toews@xxxxxxxx> > --- > Change since v1: add Signed-off-by Applied, thanks Sascha > --- > drivers/mtd/nand/nand-bb.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mtd/nand/nand-bb.c b/drivers/mtd/nand/nand-bb.c > index c197738..012163e 100644 > --- a/drivers/mtd/nand/nand-bb.c > +++ b/drivers/mtd/nand/nand-bb.c > @@ -316,6 +316,8 @@ void mtd_del_bb(struct mtd_info *mtd) > list_del_init(&bb->list); > free(bb->name); > free(bb); > + > + mtd->cdev_bb = NULL; > } > > /** > -- > 2.7.4 > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
