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-rw-r--r--arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
index 30aeb267cbd2..23e1d5c249c6 100644
--- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
+++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
@@ -257,6 +257,11 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
ret = -EINVAL;
goto out;
}
+ if (tok[0] == '\0') {
+ rdt_last_cmd_printf("Missing '%s' value\n", resname);
+ ret = -EINVAL;
+ goto out;
+ }
ret = rdtgroup_parse_resource(resname, tok, closid);
if (ret)
goto out;