scsi: target/core: Use kvcalloc() instead of open-coding it

This patch does not change any functionality. Note: the code that frees
sess_cmd_map already uses kvfree() so that code does not need to be
modified.

Reviewed-by: David Disseldorp <ddiss@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 50785cf..4d1651e 100644 (file)
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -273,14 +273,11 @@ int transport_alloc_session_tags(struct se_session *se_sess,
 {
        int rc;
 
-       se_sess->sess_cmd_map = kcalloc(tag_size, tag_num,
-                                       GFP_KERNEL | __GFP_NOWARN | __GFP_RETRY_MAYFAIL);
+       se_sess->sess_cmd_map = kvcalloc(tag_size, tag_num,
+                                        GFP_KERNEL | __GFP_RETRY_MAYFAIL);
        if (!se_sess->sess_cmd_map) {
-               se_sess->sess_cmd_map = vzalloc(array_size(tag_size, tag_num));
-               if (!se_sess->sess_cmd_map) {
-                       pr_err("Unable to allocate se_sess->sess_cmd_map\n");
-                       return -ENOMEM;
-               }
+               pr_err("Unable to allocate se_sess->sess_cmd_map\n");
+               return -ENOMEM;
        }
 
        rc = sbitmap_queue_init_node(&se_sess->sess_tag_pool, tag_num, -1,