turbostat: Check return value of fscanf
authorJosh Triplett <josh@joshtriplett.org>
Wed, 21 Aug 2013 00:20:15 +0000 (17:20 -0700)
committerLen Brown <len.brown@intel.com>
Sun, 19 Jan 2014 03:34:09 +0000 (22:34 -0500)
commit74823419761c11830ea1819365f82cf3d48795cb
treeac323646d9af59a412b2e8bdf981dd803b806faf
parent2b92865e648ce04a39fda4f903784a5d01ecb0dc
turbostat: Check return value of fscanf

Some systems declare fscanf with the warn_unused_result attribute.  On
such systems, turbostat generates the following warnings:

turbostat.c: In function 'get_core_id':
turbostat.c:1203:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]
turbostat.c: In function 'get_physical_package_id':
turbostat.c:1186:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]
turbostat.c: In function 'cpu_is_first_core_in_package':
turbostat.c:1169:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]
turbostat.c: In function 'cpu_is_first_sibling_in_core':
turbostat.c:1148:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result]

Fix these by checking the return value of those four calls to fscanf.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Len Brown <len.brown@intel.com>
tools/power/x86/turbostat/turbostat.c