staging: gasket: page_table: don't unmap coherent pages
authorNick Ewalt <nicholasewalt@google.com>
Mon, 17 Sep 2018 12:39:01 +0000 (05:39 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 18 Sep 2018 11:22:01 +0000 (13:22 +0200)
commitf8b6a076610f4eb44b0b02c110b7e6f981d7cdc2
tree0607d9cb701e968efe9c50b141414d96ef79796a
parentd2118f8e93dfc41ab660fb97593dbd6ebdd11f7e
staging: gasket: page_table: don't unmap coherent pages

Only call dma_unmap_page if there was an associated dma_map_page call.

Signed-off-by: Nick Ewalt <nicholasewalt@google.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/gasket/gasket_page_table.c