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lib,cpuset: fix stride handling in cpulist_parse() 

If cpulist_parse() gets passed a cpu list with a stride value of 0 it will be
stuck in an endless loop.  E.g. the following cpu list will cause an endless
loop: "0-2:0".  Fix this by causing a parse error if the stride value is 0.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2011-09-09 11:19:32 +02:00 committed by Karel Zak
parent 289127f52d
commit 72232a267a
1 changed files with 2 additions and 0 deletions
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lib/cpuset.c
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@ -292,6 +292,8 @@ int cpulist_parse(const char *str, cpu_set_t *set, size_t setsize, int fail)
if (c1 != NULL && (c2 == NULL || c1 < c2)) {
if (sscanf(c1, "%u", &s) < 1)
return 1;
if (s == 0)
return 1;
}
}