7ceeee39d7
Improve robustness when handling LVM.
* disk/lvm.c (grub_lvm_getvalue): Return 0 when `*p' is NULL
(and leave `*p' unmodified).
(grub_lvm_iterate): Don't assume `vg->lvs != NULL' when iterating
through it.
(grub_lvm_memberlist): Don't assume `lv->vg->pvs != NULL' when
iterating through it.
(grub_lvm_open): Don't assume `vg->lvs != NULL' when iterating
through it.
(grub_lvm_scan_device): Check the return value (and fail gracefuly
when due) on each grub_lvm_getvalue() or grub_strstr() call.
Don't assume `vg->pvs != NULL' when iterating through it.
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. For now, there is not much documentation yet. Please look at the GRUB Wiki <http://grub.enbug.org> for testing procedures.