John Hubbard 86217fecc4 rapidio: fix an error in get_user_pages_fast() error handling ... commit ffca476a0a upstream. In the case of get_user_pages_fast() returning fewer pages than requested, rio_dma_transfer() does not quite do the right thing. It attempts to release all the pages that were requested, rather than just the pages that were pinned. Fix the error handling so that only the pages that were successfully pinned are released. Fixes: e8de370188 ("rapidio: add mport char device driver") Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20200517235620.205225-2-jhubbard@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-05-27 17:46:48 +02:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
rio_mport_cdev.c	rapidio: fix an error in get_user_pages_fast() error handling	2020-05-27 17:46:48 +02:00
tsi721.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
tsi721.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
tsi721_dma.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7	2019-05-21 11:28:40 +02:00