Don't just drop the error from visorchannel_read on the floor, report it.
Signed-off-by: David Kershner <david.kersh...@unisys.com>
Reviewed-by: Reviewed-by: Tim Sell <timothy.s...@unisys.com>
---
drivers/staging/unisys/visorbus/visorchipset.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/unisys/visorbus/visorchipset.c
b/drivers/staging/unisys/visorbus/visorchipset.c
index cb8c6f9..543218f 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -91,10 +91,15 @@ static ssize_t toolaction_show(struct device *dev,
char *buf)
{
u8 tool_action = 0;
+ int err;
+
+ err = visorchannel_read(chipset_dev->controlvm_channel,
+ offsetof(struct spar_controlvm_channel_protocol,
+ tool_action),
+ &tool_action, sizeof(u8));
+ if (err)
+ return err;
- visorchannel_read(chipset_dev->controlvm_channel,
- offsetof(struct spar_controlvm_channel_protocol,
- tool_action), &tool_action, sizeof(u8));
return sprintf(buf, "%u\n", tool_action);
}
--
git-series 0.9.1
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