4.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> commit bc44bd1d864664f3658352c6aaaa02557d49165d upstream. scsi_host_alloc() not only allocates memory for a SCSI host but also creates the scsi_eh_<n> kernel thread and the scsi_tmf_<n> workqueue. Stop these threads if login fails by calling scsi_host_put(). Reported-by: Konstantin Krotov <kkv@xxxxxxxx> Fixes: fb49c8bbaae7 ("Remove an extraneous scsi_host_put() from an error path") Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx> Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx> Cc: Sebastian Parschauer <sebastian.riemer@xxxxxxxxxxxxxxxx> Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/infiniband/ulp/srp/ib_srp.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2757,6 +2757,13 @@ static int srp_sdev_count(struct Scsi_Ho return c; } +/* + * Return values: + * < 0 upon failure. Caller is responsible for SRP target port cleanup. + * 0 and target->state == SRP_TARGET_REMOVED if asynchronous target port + * removal has been scheduled. + * 0 and target->state != SRP_TARGET_REMOVED upon success. + */ static int srp_add_target(struct srp_host *host, struct srp_target_port *target) { struct srp_rport_identifiers ids; @@ -3295,6 +3302,8 @@ out: mutex_unlock(&host->add_target_mutex); scsi_host_put(target->scsi_host); + if (ret < 0) + scsi_host_put(target->scsi_host); return ret; -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html