diff options
| author | Tony Luck <tony.luck@intel.com> | 2017-09-25 16:39:35 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-27 12:10:10 +0200 |
| commit | 29e74f35b2fed0ca3e8b31db157e1d183e9d0819 (patch) | |
| tree | 8a618a93b8a53d9c07506b4cba9ac1bac2d9e852 /arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | |
| parent | c377dcfbee808efdb66cf1bb6b9f06fa26b2ad0a (diff) | |
x86/intel_rdt: Add diagnostics when writing the tasks file
About the only tricky case is trying to move a task into a monitor
group that is a subdirectory of a different control group. But cover
the simple cases too.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Vikas Shivappa <vikas.shivappa@intel.com>
Cc: Boris Petkov <bp@suse.de>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/f1841cce6a242aed37cb926dee8942727331bf78.1506382469.git.tony.luck@intel.com
Diffstat (limited to 'arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c')
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c index f29b4c21e7d4..30aeb267cbd2 100644 --- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c +++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c @@ -232,10 +232,8 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of, int closid, ret = 0; /* Valid input requires a trailing newline */ - if (nbytes == 0 || buf[nbytes - 1] != '\n') { - seq_buf_puts(&last_cmd_status, "no trailing newline\n"); + if (nbytes == 0 || buf[nbytes - 1] != '\n') return -EINVAL; - } buf[nbytes - 1] = '\0'; rdtgrp = rdtgroup_kn_lock_live(of->kn); |