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Commit d9857c79 authored by David Kershner's avatar David Kershner Committed by Greg Kroah-Hartman
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staging: unisys: visorbus: add error handling to error_show 



Don't just drop the error from visorchannel_read on the floor, report it.

Signed-off-by: default avatarDavid Kershner <david.kershner@unisys.com>
Reviewed-by: default avatarReviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0b01c6ce

drivers/staging/unisys/visorbus/visorchipset.c

+7 −4
Original line number Diff line number Diff line
@@ -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,

	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);

}