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[ Upstream commitbe34705aa5] The hashmap__new() function never returns NULL, it returns error pointers. Fix the error checking to match. Additionally, set ftrace->profile_hash to NULL on error, and return the exact error code from hashmap__new(). Fixes:0f223813ed("perf ftrace: Add 'profile' command") Suggested-by: Ian Rogers <irogers@google.com> Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>