diff options
| -rw-r--r-- | drivers/staging/unisys/visorbus/visorchipset.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 00fd02f5a71f..b09ef4ce5ae2 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -170,11 +170,14 @@ static ssize_t error_show(struct device *dev, struct device_attribute *attr, char *buf) { u32 error = 0; + int err; - visorchannel_read(chipset_dev->controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - installation_error), - &error, sizeof(u32)); + err = visorchannel_read(chipset_dev->controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + installation_error), + &error, sizeof(u32)); + if (err) + return err; return sprintf(buf, "%i\n", error); } |