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| author |   Balasubramaniam, Hari Chand <hari.chand.balasubramaniam@intel.com> | 2017-08-15 10:05:46 +0800 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2017-08-15 10:48:21 +0300 |
| commit | d59814a5b4852442e1d03c569a4542f8b08356a7 (patch) | |
| tree | 2165ff3f62d2496655405ca21af754972a8d52cf /drivers/gpu | |
| parent | drm/i915/dp: Validate the compliance test link parameters (diff) | |
| download | linux-dev-d59814a5b4852442e1d03c569a4542f8b08356a7.tar.xz linux-dev-d59814a5b4852442e1d03c569a4542f8b08356a7.zip | |
drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c
variable 'data' may be used uninitialized in this function. thus,
'function dcs_get_backlight' will return unwanted value/fail.
Thus, adding NULL initialized to 'data' variable will solve the return
failure happening.
v2: Change commit message to reflect upstream with proper message
Fixes: 90198355b83c ("drm/i915/dsi: Add DCS control for Panel PWM")
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Yetunde Adebisi <yetundex.adebisi@intel.com>
Cc: Deepak M <m.deepak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Balasubramaniam, Hari Chand <hari.chand.balasubramaniam@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1502762746-191826-1-git-send-email-hari.chand.balasubramaniam@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c index 6e09ceb71500..150a156f3b1e 100644 --- a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c +++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c @@ -46,7 +46,7 @@ static u32 dcs_get_backlight(struct intel_connector *connector) struct intel_encoder *encoder = connector->encoder; struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); struct mipi_dsi_device *dsi_device; - u8 data; + u8 data = 0; enum port port; /* FIXME: Need to take care of 16 bit brightness level */ |