the returned NULL pointer is not detected by IS_ERR(), and then
de-referenced in the calling function, omap_iommu_attach_dev().

Signed-off-by: Guillaume Aubertin <g-auber...@ti.com>
---
 drivers/iommu/omap-iommu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index badc17c..a0fcad2 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -861,7 +861,7 @@ static struct omap_iommu *omap_iommu_attach(const char 
*name, u32 *iopgd)
                                (void *)name,
                                device_match_by_alias);
        if (!dev)
-               return NULL;
+               return ERR_PTR(-ENODEV);
 
        obj = to_iommu(dev);
 
-- 
1.7.0.4

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