android_kernel_google_msm/drivers/infiniband/ulp/srp
Bart Van Assche c52be4c859 IB/srp: Fix a sporadic crash triggered by cable pulling
commit 024ca90151 upstream.

Avoid that the loops that iterate over the request ring can encounter
a pointer to a SCSI command in req->scmnd that is no longer associated
with that request. If the function srp_unmap_data() is invoked twice
for a SCSI command that is not in flight then that would cause
ib_fmr_pool_unmap() to be invoked with an invalid pointer as argument,
resulting in a kernel oops.

Reported-by: Sagi Grimberg <sagig@mellanox.com>
Reference: http://thread.gmane.org/gmane.linux.drivers.rdma/19068/focus=19069
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-06 18:49:19 -07:00
..
ib_srp.c IB/srp: Fix a sporadic crash triggered by cable pulling 2014-07-06 18:49:19 -07:00
ib_srp.h IB/srp: try to use larger FMR sizes to cover our mappings 2011-03-15 19:41:30 -04:00
Kbuild
Kconfig