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dasd: fix list_del corruption during format

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If I/O errors occur during format a kernel panic with a list_del
corruption may occur.

Stop error recovery procedure after an erp action was taken.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Stefan Haberland 2014-07-18 14:24:20 +02:00 committed by Martin Schwidefsky
parent 931a3dce81
commit 8fa56aed12
1 changed files with 5 additions and 1 deletions
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6
drivers/s390/block/dasd.c
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@ -2307,8 +2307,12 @@ retry:
rc = 0; rc = 0;
list_for_each_entry_safe(cqr, n, ccw_queue, blocklist) { list_for_each_entry_safe(cqr, n, ccw_queue, blocklist) {
if (__dasd_sleep_on_erp(cqr)) if (__dasd_sleep_on_erp(cqr)) {
if (!cqr->status == DASD_CQR_TERMINATED &&
!cqr->status == DASD_CQR_NEED_ERP)
break;
rc = 1; rc = 1;
}
} }
if (rc) if (rc)
goto retry; goto retry;