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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-06 00:52:57 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-06 01:22:41 -0700 |
| commit | f1453773514bb8b0bba0716301e8c8f17f8d39c7 (patch) | |
| tree | fd8b84b89093cfd1c148413250a2aa26af394106 /virt | |
| parent | e7810c2d2c37fa8e58dda74b00790dab60fe6fba (diff) | |
| download | linux-f1453773514bb8b0bba0716301e8c8f17f8d39c7.tar.bz2 | |
target: Fix alua_access_state attribute OOPs for un-configured devices
This patch fixes a OOPs where an attempt to write to the per-device
alua_access_state configfs attribute at:
/sys/kernel/config/target/core/$HBA/$DEV/alua/$TG_PT_GP/alua_access_state
results in an NULL pointer dereference when the backend device has not
yet been configured.
This patch adds an explicit check for DF_CONFIGURED, and fails with
-ENODEV to avoid this case.
Reported-by: Chris Boot <crb@tiger-computing.co.uk>
Reported-by: Philip Gaw <pgaw@darktech.org.uk>
Cc: Chris Boot <crb@tiger-computing.co.uk>
Cc: Philip Gaw <pgaw@darktech.org.uk>
Cc: stable@vger.kernel.org # 3.8+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions