FROMLIST: drm/bridge: anx7625: Fix EDID block size at drm_edid_alloc() calling

Xin-ANX · riteshk-quic · commit 583091636e1c · 2025-11-20T13:29:18.000+05:30
Since DRM validates the all of EDID blocks, allocates drm_edid data structure based on the actually block count returned by the sink monitor at drm_edid_alloc() calling. Fixes: 7c585f9 ("drm/bridge: anx7625: use struct drm_edid more") Signed-off-by: Xin Ji <xji@analogixsemi.com> Link: https://lore.kernel.org/all/20250808064613.2623732-1-xji@analogixsemi.com/ Signed-off-by: Arpit Saini <arpisain@qti.qualcomm.com>
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1801,7 +1801,7 @@ static const struct drm_edid *anx7625_edid_read(struct anx7625_data *ctx)
 		return NULL;
 	}
 
-	ctx->cached_drm_edid = drm_edid_alloc(edid_buf, FOUR_BLOCK_SIZE);
+	ctx->cached_drm_edid = drm_edid_alloc(edid_buf, edid_num * EDID_LENGTH);
 	kfree(edid_buf);
 
 out:

Original file line number	Diff line number	Diff line change
`@@ -1801,7 +1801,7 @@ static const struct drm_edid anx7625_edid_read(struct anx7625_data ctx)`
`1801`	`1801`	`return NULL;`
`1802`	`1802`	`}`
`1803`	`1803`
`1804`		`- ctx->cached_drm_edid = drm_edid_alloc(edid_buf, FOUR_BLOCK_SIZE);`
	`1804`	`+ ctx->cached_drm_edid = drm_edid_alloc(edid_buf, edid_num * EDID_LENGTH);`
`1805`	`1805`	`kfree(edid_buf);`
`1806`	`1806`
`1807`	`1807`	`out:`