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malloc(), when passed zero size, may return NULL (the behavior is implementation defined). Mirror the ->gov_num check to the other two allocations as well. Don't chance then actually using a NULL in print_cpufreq_para(). Fixes:75e06d089d("xenpm: add cpu frequency control interface, through which user can") Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Jason Andryuk <jason.andryuk@amd.com> master commit:6c0dc87bb0master date: 2025-03-26 12:30:57 +0100