On Wed 2018-03-14 10:41:36, Suman Anna wrote:

The OMAP3 ISP driver manages its MMU mappings through the IOMMU-aware
ARM DMA backend. The current code creates a dma_iommu_mapping and
attaches this to the ISP device, but never detaches the mapping in
either the probe failure paths or the driver remove path resulting
in an unbalanced mapping refcount and a memory leak. Fix this properly.

Reported-by: Pavel Machek <redacted>
Signed-off-by: Suman Anna <redacted>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
v2 Changes:
 - Dropped the error_attach label, and returned directly from the
   first error path (comments from Sakari)
 - Added Sakari's Acked-by
v1: https://patchwork.kernel.org/patch/10276759/

Pavel,
I dropped your Tested-by from v2 since I modified the patch, can you
recheck the new patch again? Thanks.

I updated to new -next version and re-ran the test.

Tested-by: Pavel Machek <redacted>
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20180315/f6f5b43e/attachment.sig>