Souptick Joarder a81072a9c0 misc: mic: scif: Fix error handling path ... Inside __scif_pin_pages(), when map_flags != SCIF_MAP_KERNEL it will call pin_user_pages_fast() to map nr_pages. However, pin_user_pages_fast() might fail with a return value -ERRNO. The return value is stored in pinned_pages->nr_pages. which in turn is passed to unpin_user_pages(), which expects pinned_pages->nr_pages >=0, else disaster. Fix this by assigning pinned_pages->nr_pages to 0 if pin_user_pages_fast() returns -ERRNO. Fixes: ba612aa8b4 ("misc: mic: SCIF memory registration and unregistration") Cc: John Hubbard <jhubbard@nvidia.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Link: https://lore.kernel.org/r/1600570295-29546-1-git-send-email-jrdr.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-09-22 18:53:47 +02:00
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bus	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290	2019-06-05 17:36:38 +02:00
card	misc: mic: card: mic_debugfs: Demote function headers from kerneldoc	2020-07-01 15:08:03 +02:00
common	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290	2019-06-05 17:36:38 +02:00
cosm	misc: mic: cosm: cosm_debugfs: Demote function headers from kerneldoc	2020-07-01 15:08:04 +02:00
cosm_client	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290	2019-06-05 17:36:38 +02:00
host	misc: mic: host: mic_debugfs: Demote function headers from kerneldoc	2020-07-01 15:08:03 +02:00
scif	misc: mic: scif: Fix error handling path	2020-09-22 18:53:47 +02:00
vop	vop: sparse warning fixup	2020-07-10 14:58:00 +02:00
Kconfig	dma-mapping: make support for dma ops optional	2020-07-19 09:29:23 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00