From: Adrian Hunter adrian.hunter@intel.com
commit e64daad660a0c9ace3acdc57099fffe5ed83f977 upstream.
sysfs_remove_link() causes a warning if the parent directory does not exist. That can happen if the device link consumer has not been registered. So do not attempt sysfs_remove_link() in that case.
Fixes: 287905e68dd29 ("driver core: Expose device link details in sysfs") Signed-off-by: Adrian Hunter adrian.hunter@intel.com Cc: stable@vger.kernel.org # 5.9+ Reviewed-by: Rafael J. Wysocki rafael@kernel.org Link: https://lore.kernel.org/r/20210716114408.17320-2-adrian.hunter@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/base/core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -449,8 +449,10 @@ static void devlink_remove_symlinks(stru return; }
- snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup)); - sysfs_remove_link(&con->kobj, buf); + if (device_is_registered(con)) { + snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup)); + sysfs_remove_link(&con->kobj, buf); + } snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con)); sysfs_remove_link(&sup->kobj, buf); kfree(buf);