tools/testing/selftests/cgroup/cgroup_util.c: cg_read_strcmp: fix null pointer dereference
Haven't reproduced this issue. This PR is does a minor code cleanup. Signed-off-by: Gaurav Singh <gaurav1086@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Michal Koutn <mkoutny@suse.com> Cc: Roman Gushchin <guro@fb.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Chris Down <chris@chrisdown.name> Link: http://lkml.kernel.org/r/20200726013808.22242-1-gaurav1086@gmail.comSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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