Commit 279b192c authored by Al Viro's avatar Al Viro
Browse files

blob_to_mnt(): kern_unmount() is needed to undo kern_mount() 



plain mntput() won't do.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent f6957b71

kernel/usermode_driver.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

	}