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-rw-r--r--fs/devfs-core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/devfs-core.c b/fs/devfs-core.c
index a92d4347f8..44f0169e63 100644
--- a/fs/devfs-core.c
+++ b/fs/devfs-core.c
@@ -171,6 +171,7 @@ static int partition_ioctl(struct cdev *cdev, int request, void *buf)
user->erasesize = cdev->mtd->erasesize;
user->writesize = cdev->mtd->writesize;
user->oobsize = cdev->mtd->oobsize;
+ user->subpagesize = cdev->mtd->writesize >> cdev->mtd->subpage_sft;
user->mtd = cdev->mtd;
/* The below fields are obsolete */
user->ecctype = -1;