Some determine_rate implementations are not returning an error
when they failed to adapt the rate according to the rate request.
Fix them so that they return an error instead of silently
returning 0.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Tero Kristo <t-kristo@ti.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
}
}
+ if (br < 0)
+ return br;
+
req->best_parent_rate = bpr;
req->best_parent_hw = __clk_get_hw(bpc);
req->rate = br;
+
return 0;
}
return mux_ops->determine_rate(mux_hw, req);
} else {
pr_err("clk: clk_composite_determine_rate function called, but no mux or rate callback set!\n");
- req->rate = 0;
- return 0;
+ return -EINVAL;
}
}
}
}
+ if (!best_parent)
+ return -EINVAL;
+
out:
if (best_parent)
req->best_parent_hw = best_parent->hw;
req->rate = 180000000;
req->best_parent_rate = 1440000000;
}
- return 0;
+ return -EINVAL;
}
static u32 mmc_clk_delay(u32 val, u32 para, u32 off, u32 len)
parent = NULL;
mix_rate_best = 0;
parent_rate_best = 0;
- gap_best = req->rate;
+ gap_best = ULONG_MAX;
parent_best = NULL;
if (mix->table) {
}
found:
+ if (!parent_best)
+ return -EINVAL;
+
req->best_parent_rate = parent_rate_best;
req->best_parent_hw = __clk_get_hw(parent_best);
req->rate = mix_rate_best;
}
}
- if (best_parent)
- req->best_parent_hw = __clk_get_hw(best_parent);
+ if (!best_parent)
+ return -EINVAL;
+
+ req->best_parent_hw = __clk_get_hw(best_parent);
req->best_parent_rate = best;
req->rate = best_child_rate;
}
}
+ if (best_rate < 0)
+ return best_rate;
+
req->rate = best_rate;
return 0;
}
}
- if (best_parent)
- req->best_parent_hw = __clk_get_hw(best_parent);
+ if (!best_parent)
+ return -EINVAL;
+
+ req->best_parent_hw = __clk_get_hw(best_parent);
req->best_parent_rate = best;
req->rate = best_child_rate;