4.15-stable review patch. If anyone has any objections, please let me know.
------------------ From: Mika Kahola <[email protected]> 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 <[email protected]> Tested-by: Jaswinder Singh Rajput <[email protected]> Suggested-by: Jani Nikula <[email protected]> Reviewed-by: Jani Nikula <[email protected]> Signed-off-by: Mika Kahola <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 0b7029b7e43fda1304c181a3ade0b429b9edcd9d) Signed-off-by: Rodrigo Vivi <[email protected]> Cc: <[email protected]> # v4.10+ Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 */
