path: root/drivers/ptp
diff options
authorJon Hunter <>2021-04-20 14:24:19 +0100
committerMarc Zyngier <>2021-04-20 17:17:55 +0100
commita86ed2cfa13c5175eb082c50a644f6bf29ac65cc (patch)
tree3864cb568a5d6558eb2e454aec95bcf91d94c827 /drivers/ptp
parent127ce0b14133f48a5635faa9dac69a3a99f85146 (diff)
ptp: Don't print an error if ptp_kvm is not supported
Commit 300bb1fe7671 ("ptp: arm/arm64: Enable ptp_kvm for arm/arm64") enable ptp_kvm support for ARM platforms and for any ARM platform that does not support this, the following error message is displayed ... ERR KERN fail to initialize ptp_kvm For platforms that do not support ptp_kvm this error is a bit misleading and so fix this by only printing this message if the error returned by kvm_arch_ptp_init() is not -EOPNOTSUPP. Note that -EOPNOTSUPP is only returned by ARM platforms today if ptp_kvm is not supported. Fixes: 300bb1fe7671 ("ptp: arm/arm64: Enable ptp_kvm for arm/arm64") Signed-off-by: Jon Hunter <> Acked-by: Richard Cochran <> Signed-off-by: Marc Zyngier <> Link:
Diffstat (limited to 'drivers/ptp')
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ptp/ptp_kvm_common.c b/drivers/ptp/ptp_kvm_common.c
index 721ddcede5e1..fcae32f56f25 100644
--- a/drivers/ptp/ptp_kvm_common.c
+++ b/drivers/ptp/ptp_kvm_common.c
@@ -138,7 +138,8 @@ static int __init ptp_kvm_init(void)
ret = kvm_arch_ptp_init();
if (ret) {
- pr_err("fail to initialize ptp_kvm");
+ if (ret != -EOPNOTSUPP)
+ pr_err("fail to initialize ptp_kvm");
return ret;