staging: kpc2000: kpc_dma: Unpin partial pinned pages

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There is a bug, when get_user_pages() failed but partially pinned
pages are not unpinned and positive numbers are returned instead of
-ERRNO. Fixed it.

Also, int is more appropriate type for rv. Changed it.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Bharath Vedartham <linux.bhar@gmail.com>
Link: https://lore.kernel.org/r/1593584264-16982-2-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Souptick Joarder 2020-07-01 11:47:41 +05:30 • committed by Greg Kroah-Hartman

parent f9b468a3bd

commit 63ed1e0287

1 changed files with 9 additions and 4 deletions

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drivers/staging/kpc2000/kpc_dma/fileops.c

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