4.15-stable review patch. If anyone has any objections, please let me know.
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From: Mika Kahola mika.kahola@intel.com
commit 9965db26ac0548648309f506dc155a92daa2158f upstream.
We may have fused or unused pipes in our system. Let's check that the pipe in question is within limits of accessible pipes. In case, that we are not able to access the pipe, we return early with a warning.
v2: Rephrasing of the commit message (Jani)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103206 Reported-by: Thomas Gleixner tglx@linutronix.de Tested-by: Jaswinder Singh Rajput jaswinder@perfectintelligent.com Suggested-by: Jani Nikula jani.nikula@intel.com Reviewed-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Mika Kahola mika.kahola@intel.com Signed-off-by: Jani Nikula jani.nikula@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/1513584243-12607-1-git-send-em... (cherry picked from commit 0b7029b7e43fda1304c181a3ade0b429b9edcd9d) Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com Cc: stable@vger.kernel.org # v4.10+ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/i915/intel_audio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -754,7 +754,7 @@ static struct intel_encoder *get_saved_e { struct intel_encoder *encoder;
- if (WARN_ON(pipe >= INTEL_INFO(dev_priv)->num_pipes)) + if (WARN_ON(pipe >= ARRAY_SIZE(dev_priv->av_enc_map))) return NULL;
/* MST */