diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/omap-iommu-debug.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c index 8e19bfa94121..a99afb5d9011 100644 --- a/drivers/iommu/omap-iommu-debug.c +++ b/drivers/iommu/omap-iommu-debug.c @@ -98,8 +98,11 @@ static ssize_t debug_read_regs(struct file *file, char __user *userbuf, mutex_lock(&iommu_debug_lock); bytes = omap_iommu_dump_ctx(obj, p, count); + if (bytes < 0) + goto err; bytes = simple_read_from_buffer(userbuf, count, ppos, buf, bytes); +err: mutex_unlock(&iommu_debug_lock); kfree(buf); |