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author | Bharat Bhushan <Bharat.Bhushan@nxp.com> | 2016-06-23 00:40:48 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-27 03:14:03 +0300 |
commit | f93627146f0e371093966ed3d44c065aa077cfb1 (patch) | |
tree | e75a20bcceee608ac69f9319d15fb81637224c3a /drivers/dma/at_xdmac.c | |
parent | fde867d308f39dfd4744c8da1695547b20e002b1 (diff) | |
download | linux-f93627146f0e371093966ed3d44c065aa077cfb1.tar.xz |
staging: fsl-mc: fix asymmetry in destroy of mc_io
An mc_io represents a mapped MC portal. Previously, an mc_io was
created for the root dprc in fsl_mc_bus_probe() and for child dprcs
in dprc_probe(). But the free of that data structure happened in the
general bus remove callback. This asymmetry resulted in some bugs due
to unwanted destroys of mc_io object in some scenarios (e.g. vfio).
Fix this bug by making things symmetric-- mc_io created in
fsl_mc_bus_probe() is freed in fsl_mc_bus_remove(). The mc_io created
in dprc_probe() is freed in dprc_remove().
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
[Stuart: added check for root dprc and reworded commit message]
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma/at_xdmac.c')
0 files changed, 0 insertions, 0 deletions