Messages in this thread Patch in this message | | | Date | Thu, 13 Oct 2016 11:55:08 +0300 | From | Dan Carpenter <> | Subject | [patch] drm/i915: fix a read size argument |
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We want to read 3 bytes here, but because the parenthesis are in the wrong place we instead read:
sizeof(intel_dp->edp_dpcd) == sizeof(intel_dp->edp_dpcd)
which is one byte.
Fixes: fe5a66f91c88 ("drm/i915: Read PSR caps/intermediate freqs/etc. only once on eDP") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 14a3cf0..ee8aa95 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3551,8 +3551,8 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) /* Read the eDP Display control capabilities registers */ if ((intel_dp->dpcd[DP_EDP_CONFIGURATION_CAP] & DP_DPCD_DISPLAY_CONTROL_CAPABLE) && drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_DPCD_REV, - intel_dp->edp_dpcd, sizeof(intel_dp->edp_dpcd) == - sizeof(intel_dp->edp_dpcd))) + intel_dp->edp_dpcd, sizeof(intel_dp->edp_dpcd)) == + sizeof(intel_dp->edp_dpcd)) DRM_DEBUG_KMS("EDP DPCD : %*ph\n", (int) sizeof(intel_dp->edp_dpcd), intel_dp->edp_dpcd);
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