1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index f42f2bac6466..1f327898e53d 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -432,7 +432,7 @@ static ssize_t regmap_access_read_file(struct file *file,
                 /* If we're in the region the user is trying to read */
                 if (p >= *ppos) {
                         /* ...but not beyond it */
-                        if (buf_pos >= count - 1 - tot_len)
+                        if (buf_pos + tot_len + 1 >= count)
                                 break;
 
                         /* Format the register */