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dmstats: check for zero in _nr_areas_from_step() (Coverity)

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Bryn M. Reeves 2015-08-17 18:31:11 +01:00
parent b01e9651b0
commit 69fa16048a
1 changed files with 4 additions and 0 deletions
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4
tools/dmsetup.c
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@ -4434,6 +4434,10 @@ static int _size_from_string(char *argptr, uint64_t *size, const char *name)
*/
static uint64_t _nr_areas_from_step(uint64_t len, int64_t step)
{
/* Default is one area. */
if (!step || !len)
return 1;
/* --areas */
if (step < 0)
return (uint64_t)(-step);