[PATCH] s390: qeth driver fixes [5/6]

[PATCH 8/9] s390: qeth driver fixes [5/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	fix kernel panic in qdio queue handling.
	qeth_qdio_clear_card() could be invoked by 2 CPUs
	simultaneously (for example reboot event and recovery).

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index 22a7ffbcaa42..821383d8cbe7 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -463,6 +463,7 @@ enum qeth_qdio_info_states {
         QETH_QDIO_UNINITIALIZED,
         QETH_QDIO_ALLOCATED,
         QETH_QDIO_ESTABLISHED,
+        QETH_QDIO_CLEANING
 };
 
 struct qeth_buffer_pool_entry {
@@ -537,7 +538,7 @@ struct qeth_qdio_out_q {
 } __attribute__ ((aligned(256)));
 
 struct qeth_qdio_info {
-        volatile enum qeth_qdio_info_states state;
+        atomic_t state;
         /* input */
         struct qeth_qdio_q *in_q;
         struct qeth_qdio_buffer_pool in_buf_pool;