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coverity: just make impossible division by zero

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Visible for analyzer  code will not try to use 0 for division.
This commit is contained in:
Zdenek Kabelac 2017-06-30 19:44:06 +02:00
parent 3d08b0971f
commit 2ceb5a0abb
1 changed files with 6 additions and 1 deletions
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7
lib/metadata/raid_manip.c
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@ -844,7 +844,7 @@ static int _reorder_raid10_near_seg_areas(struct lv_segment *seg, enum raid0_rai
if (!(idx = dm_pool_zalloc(seg_lv(seg, 0)->vg->vgmem, seg->area_count * sizeof(*idx)))) {
log_error("Memory allocation failed.");
return_0;
return 0;
}
/* Set up positional index array */
@ -874,6 +874,11 @@ static int _reorder_raid10_near_seg_areas(struct lv_segment *seg, enum raid0_rai
* _reorder_raid10_near_seg_areas 2137 idx[8]=8
*/
/* idx[from] = to */
if (!stripes) {
log_error(INTERNAL_ERROR "LV %s is missing stripes.",
display_lvname(seg->lv));
return 0;
}
for (s = ss = 0; s < seg->area_count; s++)
if (s < stripes)
idx[s] = s * data_copies;