[PATCH] s390: enable interrupts on error path
Interrupts can stay disabled if an error occurred in _chp_add(). Use spin_unlock_irq on the error paths to reenable interrupts. Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -635,13 +635,13 @@ __chp_add(struct subchannel_id schid, void *data)
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if (sch->schib.pmcw.chpid[i] == chp->id) {
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if (stsch(sch->schid, &sch->schib) != 0) {
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/* Endgame. */
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spin_unlock(&sch->lock);
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spin_unlock_irq(&sch->lock);
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return -ENXIO;
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}
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break;
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}
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if (i==8) {
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spin_unlock(&sch->lock);
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spin_unlock_irq(&sch->lock);
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return 0;
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}
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sch->lpm = ((sch->schib.pmcw.pim &
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