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drm/i915: Fix uninitialized mask in intel_device_info_subplatform_init 

Mask need to be initialized to zero since device id checks may not match.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 805446c834 ("drm/i915: Introduce concept of a sub-platform")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Jose Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190403064407.25646-1-tvrtko.ursulin@linux.intel.com
hifive-unleashed-5.2
Tvrtko Ursulin 2019-04-03 07:44:07 +01:00
parent 3de6f85294
commit 640cde65b4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_device_info.c
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@ -778,7 +778,7 @@ void intel_device_info_subplatform_init(struct drm_i915_private *i915)
const unsigned int pi = __platform_mask_index(rinfo, info->platform);
const unsigned int pb = __platform_mask_bit(rinfo, info->platform);
u16 devid = INTEL_DEVID(i915);
u32 mask;
u32 mask = 0;
/* Make sure IS_<platform> checks are working. */
RUNTIME_INFO(i915)->platform_mask[pi] = BIT(pb);