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xen/scsiback: correct frontend counting

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When adding a new frontend to xen-scsiback don't decrement the number
of active frontends in case of no error. Doing so results in a failure
when trying to remove the xen-pvscsi nexus even if no domain is using
it.

Signed-off-by: Juergen Gross <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Cc: [email protected]
Signed-off-by: David Vrabel <[email protected]>
This commit is contained in:
Juergen Gross 2016-02-08 15:30:18 +01:00 • committed by David Vrabel
commit f285aa8db7
1 changed files with 5 additions and 5 deletions
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10
drivers/xen/xen-scsiback.c
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@ -939,12 +939,12 @@ out:
spin_unlock_irqrestore(&info->v2p_lock, flags);
out_free:
mutex_lock(&tpg->tv_tpg_mutex);
tpg->tv_tpg_fe_count--;
mutex_unlock(&tpg->tv_tpg_mutex);
if (err)
if (err) {
mutex_lock(&tpg->tv_tpg_mutex);
tpg->tv_tpg_fe_count--;
mutex_unlock(&tpg->tv_tpg_mutex);
kfree(new);
}
return err;
}