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Commit 3b88508a authored by Peter Oberparleiter's avatar Peter Oberparleiter Committed by Martin Schwidefsky
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[S390] cio: no path after machine check. 



Devices enter no-path state after disabling a channel path
via the SE even though another path has been reenabled at the SE.
The devices are set into no-path state before triggering path
verification even though other paths may have become available.
To fix this trigger path verification before setting a device into
no-path state.

Signed-off-by: default avatarPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 292888c8

drivers/s390/cio/chsc.c

+2 −2
Original line number Diff line number Diff line
@@ -238,8 +238,6 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) 
	/* Check for single path devices. */

	if (sch->schib.pmcw.pim == 0x80)

		goto out_unreg;

	if (sch->vpm == mask)

		goto out_unreg;



	if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&

	    (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
@@ -258,6 +256,8 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) 
	/* trigger path verification. */

	if (sch->driver && sch->driver->verify)

		sch->driver->verify(&sch->dev);

	else if (sch->vpm == mask)

		goto out_unreg;

out_unlock:

	spin_unlock_irq(&sch->lock);

	return 0;