drm/panel: sharp-lq101r1sx01: Fixed reversed "if" in remove

Commit d7d473d ("drm/panel: sharp-lq101r1sx01: Don't call disable
at shutdown/remove") had a subtle bug. We should be calling
sharp_panel_del() when the "sharp" variable is non-NULL, not when it's
NULL. Fix.

Fixes: d7d473d ("drm/panel: sharp-lq101r1sx01: Don't call disable at shutdown/remove")
Cc: Thierry Reding <[email protected]>
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Closes: https://lore.kernel.org/r/[email protected]/
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Douglas Anderson <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20240708105221.1.I576751c661c7edb6b804dda405d10e2e71153e32@changeid

Author: dianders

drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c

@@ -362,7 +362,7 @@ static void sharp_panel_remove(struct mipi_dsi_device *dsi)
 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
 
 	/* only detach from host for the DSI-LINK2 interface */
-	if (!sharp)
+	if (sharp)
 		sharp_panel_del(sharp);
 }