SG: audit of drivers that use blk_rq_map_sg()
They need to properly init the sg table, or blk_rq_map_sg() will
complain if CONFIG_DEBUG_SG is set.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 880b5dc..d8bb44b 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -41,9 +41,9 @@
#include <linux/completion.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/scatterlist.h>
#include <asm/vio.h>
-#include <asm/scatterlist.h>
#include <asm/iseries/hv_types.h>
#include <asm/iseries/hv_lp_event.h>
#include <asm/iseries/vio.h>
@@ -258,6 +258,7 @@
cmd = viomajorsubtype_cdio | viocdwrite;
}
+ sg_init_table(&sg, 1);
if (blk_rq_map_sg(req->q, req, &sg) == 0) {
printk(VIOCD_KERN_WARNING
"error setting up scatter/gather list\n");