[PATCH 2/4 V2] cpupower: Remove redundant error check

From: Peter Senna Tschudin
Date: Sat May 17 2014 - 18:14:48 EST


Remove double checks, and move the call to print_error to the
first check. Replace break by return, and return 0 on success.
The simplified version of the coccinelle semantic patch that
fixes this issue is as follows:

// <smpl>
@@
expression E; identifier pr; expression list es;
@@
for(...;...;...){
...
- if (E) break;
+ if (E){
+ pr(es);
+ break;
+ }
...
}
- if(E) pr(es);
// </smpl>

Untested.

Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>

---
Changes from V1:
- Replaced break with a return
- Return 0 instead of ret on success

tools/power/cpupower/utils/cpufreq-set.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c
index a416de8..f656e58 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -320,12 +320,11 @@ int cmd_freq_set(int argc, char **argv)

printf(_("Setting cpu: %d\n"), cpu);
ret = do_one_cpu(cpu, &new_pol, freq, policychange);
- if (ret)
- break;
+ if (ret) {
+ print_error();
+ return ret;
+ }
}

- if (ret)
- print_error();
-
- return ret;
+ return 0;
}
--
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