tracing/histograms: Simplify create_hist_fields()

When I look into implements of create_hist_fields(), I think there can be
following two simplifications:
  1. If something wrong happened in parse_var_defs(), free_var_defs() would
     have been called in it, so no need goto free again after calling it;
  2. After calling create_key_fields(), regardless of the value of 'ret', it
     then always runs into 'out: ', so the judge of 'ret' is redundant.

Link: https://lkml.kernel.org/r/[email protected]

Signed-off-by: Zheng Yejian <[email protected]>
Reviewed-by: Tom Rix <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

0 files changed, 0 insertions, 0 deletions