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Commit e42734e2 authored by Stefan Bader's avatar Stefan Bader Committed by Martin Schwidefsky
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[S390] cio: css_register_subchannel race. 



Asynchronous probe can release memory of a subchannel before
css_get_ssd_info is called. To fix this call css_get_ssd_info
before registering with driver core.

Signed-off-by: default avatarStefan Bader <shbader@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent da1cf23e

drivers/s390/cio/css.c

+2 −1
Original line number Diff line number Diff line
@@ -139,6 +139,8 @@ css_register_subchannel(struct subchannel *sch) 
	sch->dev.release = &css_subchannel_release;

	sch->dev.groups = subch_attr_groups;



	css_get_ssd_info(sch);



	/* make it known to the system */

	ret = css_sch_device_register(sch);

	if (ret) {
@@ -146,7 +148,6 @@ css_register_subchannel(struct subchannel *sch) 
			__func__, sch->dev.bus_id);

		return ret;

	}

	css_get_ssd_info(sch);

	return ret;

}