diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index e4519326594f39e061b51b39cdd5effb85a96f00..0fad46d3a8bd75ce2ce347faa6b50b2c27f2c8ff 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -302,7 +302,9 @@ STORE(__cached_dev)
 	sysfs_strtoul_clamp(writeback_rate_update_seconds,
 			    dc->writeback_rate_update_seconds,
 			    1, WRITEBACK_RATE_UPDATE_SECS_MAX);
-	d_strtoul(writeback_rate_i_term_inverse);
+	sysfs_strtoul_clamp(writeback_rate_i_term_inverse,
+			    dc->writeback_rate_i_term_inverse,
+			    1, UINT_MAX);
 	d_strtoul_nonzero(writeback_rate_p_term_inverse);
 	d_strtoul_nonzero(writeback_rate_minimum);