hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf
kernel/drivers/gpu/drm/rockchip/rk628/rk628_combtxphy.c
....@@ -366,6 +366,10 @@
366366 ref_clk = clk_get_rate(combtxphy->ref_clk) / 1000; /* khz */
367367 if (combtxphy->division_mode)
368368 ref_clk /= 2;
369
+
370
+ if (!ref_clk)
371
+ return -EINVAL;
372
+
369373 /*
370374 * the reference clock at PFD(FPFD = ref_clk / ref_div) about
371375 * 25MHz is recommende, FPFD must range from 16MHz to 35MHz,