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sched, cpusets: fix warning in kernel/cpuset.c

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this warning:

  kernel/cpuset.c: In function ‘generate_sched_domains’:
  kernel/cpuset.c:588: warning: ‘ndoms’ may be used uninitialized in this function

triggers because GCC does not recognize that ndoms stays uninitialized
only if doms is NULL - but that flow is covered at the end of
generate_sched_domains().

Help out GCC by initializing this variable to 0. (that's prudent anyway)

Also, this function needs a splitup and code flow simplification:
with 160 lines length it's clearly too long.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-11-25 10:27:49 +01:00
parent 4cd4262034
commit 1583715ddb
1 changed files with 1 additions and 1 deletions
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kernel/cpuset.c
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@ -585,7 +585,7 @@ static int generate_sched_domains(cpumask_t **domains,
int i, j, k; /* indices for partition finding loops */
cpumask_t *doms; /* resulting partition; i.e. sched domains */
struct sched_domain_attr *dattr; /* attributes for custom domains */
int ndoms; /* number of sched domains in result */
int ndoms = 0; /* number of sched domains in result */
int nslot; /* next empty doms[] cpumask_t slot */
doms = NULL;