diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-10-13 11:55:08 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-10-13 18:30:21 +0300 |
| commit | f7170e2eb8f6bf7ef2032cc0659cd38740bf5b97 (patch) | |
| tree | 9dd8021efb81aa77ff498e77a06e15430b3d1a12 /drivers | |
| parent | ad16d2ed8fa80e7f4f0d0da32129ed2c9caca3b4 (diff) | |
| download | linux-f7170e2eb8f6bf7ef2032cc0659cd38740bf5b97.tar.xz | |
drm/i915: fix a read size argument
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")
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <drm-intel-fixes@lists.freedesktop.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161013085508.GJ16198@mwanda
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5992093e1814..496141e3b4d3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3547,8 +3547,8 @@ 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); |