drm/i915: Initialize the mbus_offset to fix Klockwork issue

Static analysis identified an issue in skl_crtc_allocate_ddb where
mbus_offset may be used uninitialized.
This patch fixes it.

Fixes: 835c176cb1c4 ("drm/i915: Introduce MBUS relative dbuf offsets")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210603215338.13804-1-manasi.d.navare@intel.com

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 00f3dead20ad98124b300e8d652f06d6c971d1db..a385b8b7414fed1d0a666ddde5c1a358bde81f9a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4163,7 +4163,7 @@ skl_crtc_allocate_ddb(struct intel_atomic_state *state, struct intel_crtc *crtc)
        struct intel_crtc_state *crtc_state;
        struct skl_ddb_entry ddb_slices;
        enum pipe pipe = crtc->pipe;
-       unsigned int mbus_offset;
+       unsigned int mbus_offset = 0;
        u32 ddb_range_size;
        u32 dbuf_slice_mask;
        u32 start, end;