On Wed, Feb 22, 2012 at 10:52:52AM +0200, Ohad Ben-Cohen wrote:
> @@ -274,7 +274,7 @@ static ssize_t debug_read_mem(struct file *file, char
> __user *userbuf,
> mutex_lock(&iommu_debug_lock);
>
> area = omap_find_iovm_area(dev, (u32)ppos);
> - if (IS_ERR(area)) {
> + if (IS_ERR_OR_NULL(area)) {
> bytes = -EINVAL;
There's something else which needs fixing here - the return code. If
omap_find_iovm_area() returns an error code that needs propagating.
Otherwise it might as well just return NULL for all errors.
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