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-rw-r--r--drivers/md/bcache/sysfs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 0fad46d3a8bd..c6677c93e368 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -305,7 +305,9 @@ STORE(__cached_dev)
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);
+ sysfs_strtoul_clamp(writeback_rate_p_term_inverse,
+ dc->writeback_rate_p_term_inverse,
+ 1, UINT_MAX);
d_strtoul_nonzero(writeback_rate_minimum);
sysfs_strtoul_clamp(io_error_limit, dc->error_limit, 0, INT_MAX);