[SCSI] hpsa: add readl after writel in interrupt mask setting code
This is to ensure the board interrupts are really off when these functions return. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <jbottomley@parallels.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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@ -228,10 +228,12 @@ static void SA5_intr_mask(struct ctlr_info *h, unsigned long val)
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if (val) { /* Turn interrupts on */
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h->interrupts_enabled = 1;
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writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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(void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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} else { /* Turn them off */
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h->interrupts_enabled = 0;
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writel(SA5_INTR_OFF,
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h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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(void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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}
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}
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@ -240,10 +242,12 @@ static void SA5_performant_intr_mask(struct ctlr_info *h, unsigned long val)
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if (val) { /* turn on interrupts */
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h->interrupts_enabled = 1;
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writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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(void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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} else {
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h->interrupts_enabled = 0;
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writel(SA5_PERF_INTR_OFF,
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h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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(void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
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}
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}
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