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[SCSI] libfc: fixed a soft lockup issue in fc_exch_recv_abts 

The fc_seq_start_next grabs ep->ex_lock but this lock was already held here,
so instead called fc_seq_start_next_locked to avoid soft lockup.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Vasu Dev 2009-02-27 10:54:51 -08:00 committed by James Bottomley
parent 78342da368
commit a7e84f2b83
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/libfc/fc_exch.c
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@ -1096,7 +1096,7 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
ap->ba_high_seq_cnt = fh->fh_seq_cnt;
ap->ba_low_seq_cnt = htons(sp->cnt);
}
sp = fc_seq_start_next(sp);
sp = fc_seq_start_next_locked(sp);
spin_unlock_bh(&ep->ex_lock);
fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS);
fc_frame_free(rx_fp);