Merge remote branch 'anholt/drm-intel-next' into drm-next

* anholt/drm-intel-next: (515 commits)
  drm/i915: Fix out of tree builds
  drm/i915: move fence lru to struct drm_i915_fence_reg
  drm/i915: don't allow tiling changes on pinned buffers v2
  drm/i915: Be extra careful about A/D matching for multifunction SDVO
  drm/i915: Fix DDC bus selection for multifunction SDVO
  drm/i915: cleanup mode setting before unmapping registers
  drm/i915: Make fbc control wrapper functions
  drm/i915: Wait for the GPU whilst shrinking, if truly desperate.
  drm/i915: Use spatio-temporal dithering on PCH
  [MTD] Remove zero-length files mtdbdi.c and internal.ho
  pata_pcmcia / ide-cs: Fix bad hashes for Transcend and kingston IDs
  libata: Fix several inaccuracies in developer's guide
  slub: Fix bad boundary check in init_kmem_cache_nodes()
  raid6: fix recovery performance regression
  KEYS: call_sbin_request_key() must write lock keyrings before modifying them
  KEYS: Use RCU dereference wrappers in keyring key type code
  KEYS: find_keyring_by_name() can gain access to a freed keyring
  ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice)
  ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582
  ALSA: take tu->qlock with irqs disabled
  ...

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index f230f6543bff..854959cada3a 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -1484,6 +1484,11 @@ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
         if (!s)
                 return -EINVAL;
 
+        if (s->functions) {
+                WARN_ON(1);
+                return -EINVAL;
+        }
+
         /* We do not want to validate the CIS cache... */
         mutex_lock(&s->ops_mutex);
         destroy_cis_cache(s);
@@ -1639,7 +1644,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj,
                 count = 0;
         else {
                 struct pcmcia_socket *s;
-                unsigned int chains;
+                unsigned int chains = 1;
 
                 if (off + count > size)
                         count = size - off;
@@ -1648,7 +1653,7 @@ static ssize_t pccard_show_cis(struct kobject *kobj,
 
                 if (!(s->state & SOCKET_PRESENT))
                         return -ENODEV;
-                if (pccard_validate_cis(s, &chains))
+                if (!s->functions && pccard_validate_cis(s, &chains))
                         return -EIO;
                 if (!chains)
                         return -ENODATA;