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| author | Susheel Khiani <skhiani@codeaurora.org> | 2015-12-28 12:22:41 +0530 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 21:16:17 -0700 |
| commit | a0be776046a6028ab12eb1a1bed660cbdf8861b1 (patch) | |
| tree | c40dab7e305c5a0683d779c772beb10d9e16efa2 /include/linux/stackprotector.h | |
| parent | 52939ea591795252c735ab9a42e023a21c81cba9 (diff) | |
iommu: Add NULL pointer check in iommu_present function
We call msm_iommu_bus_register only when legacy
msm iommu driver is enabled. If for some reason
the driver is disabled, we never register our
dummy bus msm_iommu_non_sec_bus_type. So, we might
end up with NULL pointer exception if clients try
to call iommu_present with this dummy bus.
Put a NULL pointer check to ensure we don't end
up crashing system if legacy driver is disabled.
Change-Id: I7122e3355459e5115d639a8c1aab547bf0fc7f6e
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>
Diffstat (limited to 'include/linux/stackprotector.h')
0 files changed, 0 insertions, 0 deletions