On Sat, Jul 19, 2014 at 10:26:54AM -0400, Benjamin Romer wrote:
> +ssize_t show_toolaction(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + if (ControlVm_channel) {
> + U8 toolAction;
> +
> + visorchannel_read(ControlVm_channel,
> + offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
> + ToolAction), &toolAction, sizeof(U8));
> + return scnprintf(buf, PAGE_SIZE, "%u\n", toolAction);
> + } else
> + return -ENODEV;
> +}
> +
> +ssize_t store_toolaction(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + if (ControlVm_channel) {
> + U8 toolAction;
> +
> + if (sscanf(buf, "%hhu\n", &toolAction) == 1) {
> + if (visorchannel_write(ControlVm_channel,
> + offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
> + ToolAction),
> + &toolAction, sizeof(U8)) < 0)
> + return -EFAULT;
> + else
> + return count;
> + } else
> + return -EIO;
> + } else
> + return -ENODEV;
> +}
How could ControlVm_channel ever be NULL? Don't check for this, as the
file shouldn't even be here if ControlVm_channel is null.
Same goes for the other sysfs files in this patch series.
thanks,
greg k-h
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