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[dm-devel] [PATCH 11/24] dm table: print error on preresume failure

If preresume fails it is worth logging an error given that a device is
left suspended due to the failure.

This change was motivated by local preresume error logging that was
added to the cache target.  Elevating this error logging to DM core
makes sense.

Signed-off-by: Mike Snitzer <snitzer redhat com>
Signed-off-by: Joe Thornber <ejt redhat com>
 drivers/md/dm-table.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 8f87835..9bd75dc 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1548,8 +1548,11 @@ int dm_table_resume_targets(struct dm_table *t)
 		r = ti->type->preresume(ti);
-		if (r)
+		if (r) {
+			DMERR("%s: %s: preresume failed, error = %d",
+			      dm_device_name(t->md), ti->type->name, r);
 			return r;
+		}
 	for (i = 0; i < t->num_targets; i++) {

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