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Incremental(): Check return value of dev_open() before trying to use it 

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Jes Sorensen 2011-11-01 16:09:19 +01:00 committed by NeilBrown
parent e7344e9007
commit fb745c4bb4
1 changed files with 6 additions and 0 deletions
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6
Incremental.c
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@ -386,6 +386,12 @@ int Incremental(char *devname, int verbose, int runstop,
sprintf(dn, "%d:%d", sra->devs->disk.major,
sra->devs->disk.minor);
dfd2 = dev_open(dn, O_RDONLY);
if (dfd2 < 0) {
fprintf(stderr, Name
": unable to open %s\n", devname);
rv = 2;
goto out_unlock;
}
st2 = dup_super(st);
if (st2->ss->load_super(st2, dfd2, NULL) ||
st->ss->compare_super(st, st2) != 0) {