Commit 1583715d authored Nov 25, 2008 by Ingo Molnar

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



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>

parent 4cd42620

kernel/cpuset.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;