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selftests/resctrl: Check for return value after write_schemata() 

[ Upstream commit 0d45c83b95 ]

MBA test case writes schemata but it does not check if the write is
successful or not.

Add the error check and return error properly.

Fixes: 01fee6b4d1 ("selftests/resctrl: Add MBA test")
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ilpo Järvinen 2023-02-15 15:06:00 +02:00 committed by Greg Kroah-Hartman
parent bceef0c7f6
commit 74f77a799d
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
tools/testing/selftests/resctrl/mba_test.c
View File

@ -28,6 +28,7 @@ static int mba_setup(int num, ...)
struct resctrl_val_param *p;
char allocation_str[64];
va_list param;
int ret;
va_start(param, num);
p = va_arg(param, struct resctrl_val_param *);
@ -45,7 +46,11 @@ static int mba_setup(int num, ...)
sprintf(allocation_str, "%d", allocation);
write_schemata(p->ctrlgrp, allocation_str, p->cpu_no, p->resctrl_val);
ret = write_schemata(p->ctrlgrp, allocation_str, p->cpu_no,
p->resctrl_val);
if (ret < 0)
return ret;
allocation -= ALLOCATION_STEP;
return 0;