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RebuildMap: handle missing disks 

When rebuilding the map file tolerate missing/offline disks, otherwise
we will segfault on the NULL return from sysfs_read.

Reported-by: Jacek Danecki <jacek.danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-04-12 00:58:28 -07:00
parent 252d23c018
commit 506ffd1e0b
1 changed files with 4 additions and 1 deletions
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5
mapfile.c
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@ -294,9 +294,12 @@ void RebuildMap(void)
int mdp = get_mdp_major();
for (md = mdstat ; md ; md = md->next) {
struct mdinfo *sra = sysfs_read(-1, md->devnum, GET_DEVS);
struct mdinfo *sra = sysfs_read(-1, md->devnum, GET_DEVS|SKIP_GONE_DEVS);
struct mdinfo *sd;
if (!sra)
continue;
for (sd = sra->devs ; sd ; sd = sd->next) {
char dn[30];
int dfd;