Merge tag 'v4.1.5' into linux-linaro-lsk-v4.1lsk-v4.1-15.08

This is the 4.1.5 stable release

* tag 'v4.1.5': (124 commits)
  Linux 4.1.5
  perf symbols: Store if there is a filter in place
  xfs: remote attributes need to be considered data
  xfs: remote attribute headers contain an invalid LSN
  drm/nouveau/drm/nv04-nv40/instmem: protect access to priv->heap by mutex
  drm/nouveau: hold mutex when calling nouveau_abi16_fini()
  drm/nouveau/kms/nv50-: guard against enabling cursor on disabled heads
  drm/nouveau/fbcon/nv11-: correctly account for ring space usage
  qla2xxx: kill sessions/log out initiator on RSCN and port down events
  qla2xxx: fix command initialization in target mode.
  qla2xxx: Remove msleep in qlt_send_term_exchange
  qla2xxx: release request queue reservation.
  qla2xxx: Fix hardware lock/unlock issue causing kernel panic.
  intel_pstate: Add get_scaling cpu_defaults param to Knights Landing
  iscsi-target: Fix iser explicit logout TX kthread leak
  iscsi-target: Fix iscsit_start_kthreads failure OOPs
  iscsi-target: Fix use-after-free during TPG session shutdown
  IB/ipoib: Fix CONFIG_INFINIBAND_IPOIB_CM
  NFS: Fix a memory leak in nfs_do_recoalesce
  NFSv4: We must set NFS_OPEN_STATE flag in nfs_resync_open_stateid_locked
  ...

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index e14363d12690..63226e9036a1 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -57,6 +57,11 @@ bool efi_runtime_disabled(void)
 
 static int __init parse_efi_cmdline(char *str)
 {
+	if (!str) {
+		pr_warn("need at least one option\n");
+		return -EINVAL;
+	}
+
 	if (parse_option_str(str, "noruntime"))
 		disable_runtime = true;