Merge branches 'for-4.11/upstream-fixes', 'for-4.12/accutouch', 'for-4.12/cp2112...

[mirror_ubuntu-artful-kernel.git] / drivers / scsi / hisi_sas / hisi_sas_v1_hw.c

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 8a1be0ba8a22d399002de66c766f0d85f0ea3a4b..854fbeaade3e9c3010f6d2aa18d790e6a2b75fc6 100644 (file)
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1596,6 +1596,7 @@ static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
                        hisi_hba->complete_hdr[queue];
        u32 irq_value, rd_point = cq->rd_point, wr_point;
 
+       spin_lock(&hisi_hba->lock);
        irq_value = hisi_sas_read32(hisi_hba, OQ_INT_SRC);
 
        hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
@@ -1628,6 +1629,7 @@ static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
        /* update rd_point */
        cq->rd_point = rd_point;
        hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+       spin_unlock(&hisi_hba->lock);
 
        return IRQ_HANDLED;
 }