From 279b192c23d2fc9cb9e8c3851d6cad968f51789f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 2 Mar 2022 16:11:23 -0500 Subject: [PATCH] blob_to_mnt(): kern_unmount() is needed to undo kern_mount() plain mntput() won't do. Signed-off-by: Al Viro --- kernel/usermode_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/usermode_driver.c b/kernel/usermode_driver.c index 9dae1f6..8303f4c 100644 --- a/kernel/usermode_driver.c +++ b/kernel/usermode_driver.c @@ -28,7 +28,7 @@ static struct vfsmount *blob_to_mnt(const void *data, size_t len, const char *na file = file_open_root_mnt(mnt, name, O_CREAT | O_WRONLY, 0700); if (IS_ERR(file)) { - mntput(mnt); + kern_unmount(mnt); return ERR_CAST(file); } @@ -38,7 +38,7 @@ static struct vfsmount *blob_to_mnt(const void *data, size_t len, const char *na if (err >= 0) err = -ENOMEM; filp_close(file, NULL); - mntput(mnt); + kern_unmount(mnt); return ERR_PTR(err); } -- 2.7.4