Don't just drop the error from visorchannel_read on the floor, report it.
Signed-off-by: David Kershner <david.kershner@xxxxxxxxxx>
Reviewed-by: Reviewed-by: Tim Sell <timothy.sell@xxxxxxxxxx>
---
drivers/staging/unisys/visorbus/visorchipset.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index 00fd02f..b09ef4c 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);
}
--
git-series 0.9.1
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