Fixed defects

List of Defects

Error: GCC_ANALYZER_WARNING (CWE-476): [#def1]
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/multipath/main.c: scope_hint: In function ‘print_cmd_valid’
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/multipath/main.c:410:31: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘0’
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/libmultipath/prio.h:8: included_from: Included from here.
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/multipath/main.c:36: included_from: Included from here.
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/multipath/main.c:407:22: note: in expansion of macro ‘VECTOR_SLOT’
device-mapper-multipath-0.9.7-build/multipath-tools-0.9.7/multipath/main.c:407:22: note: in expansion of macro ‘VECTOR_SLOT’
#  408|   		select_find_multipaths_timeout(conf, pp);
#  409|   		wait = find_multipaths_check_timeout(
#  410|-> 			pp, pp->find_multipaths_timeout, &until);
#  411|   		if (wait != FIND_MULTIPATHS_WAITING)
#  412|   			k = PATH_IS_NOT_VALID;

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