Souptick Joarder 4f86b0d956 misc: mic: scif: Fix error handling path ... [ Upstream commit a81072a9c0 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:07:06 +01:00
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Makefile	…
scif_api.c	…
scif_debugfs.c	…
scif_dma.c	…
scif_epd.c	…
scif_epd.h	…
scif_fd.c	…
scif_fence.c	…
scif_main.c	…
scif_main.h	…
scif_map.h	…
scif_mmap.c	…
scif_nm.c	…
scif_nodeqp.c	…
scif_nodeqp.h	…
scif_peer_bus.c	…
scif_peer_bus.h	…
scif_ports.c	…
scif_rb.c	…
scif_rb.h	…
scif_rma.c	misc: mic: scif: Fix error handling path	2020-10-29 09:07:06 +01:00
scif_rma.h	…
scif_rma_list.c	…
scif_rma_list.h	…