[SCSI] zfcp: Zero memory for gpn_ft and adisc requests

With debug kernels, the memory allocated with kmem_cache_alloc might
be initialized with the poison values 6b and a5. Use kmem_cache_zalloc
instead of kmem_cache_alloc to get zeroed memory and not send invalid
requests.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 2a1cbb7..6f8ab43 100644 (file)
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -400,7 +400,7 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
        struct zfcp_adapter *adapter = port->adapter;
        int ret;
 
-       adisc = kmem_cache_alloc(zfcp_data.adisc_cache, GFP_ATOMIC);
+       adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC);
        if (!adisc)
                return -ENOMEM;
 
@@ -493,7 +493,7 @@ static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num)
        if (!gpn_ft)
                return NULL;
 
-       req = kmem_cache_alloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
+       req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
        if (!req) {
                kfree(gpn_ft);
                gpn_ft = NULL;