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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-06 00:52:57 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-16 13:42:53 -0700 |
| commit | 50911760bc0afc84ce85c0e26433bf3134563052 (patch) | |
| tree | e46c7e340979615c5d6edb69755e4fe1f099374d /mm | |
| parent | c39e89784d7319f6e87d6bfb17e75fd8b95e07e2 (diff) | |
| download | linux-3.10-50911760bc0afc84ce85c0e26433bf3134563052.tar.gz linux-3.10-50911760bc0afc84ce85c0e26433bf3134563052.tar.bz2 linux-3.10-50911760bc0afc84ce85c0e26433bf3134563052.zip | |
target: Fix alua_access_state attribute OOPs for un-configured devices
commit f1453773514bb8b0bba0716301e8c8f17f8d39c7 upstream.
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>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions