target/linux/ipq806x/patches-4.4/099-usb-dwc3-Remove-impossible-check-for-of_clk_get_pare.patch

   1 From 07c8b15688055d81ac8e1c8c964b9e4c302287f1 Mon Sep 17 00:00:00 2001
   2 From: Stephen Boyd <sboyd@codeaurora.org>
   3 Date: Mon, 22 Feb 2016 11:12:47 -0800
   4 Subject: [PATCH] usb: dwc3: Remove impossible check for
   5  of_clk_get_parent_count() < 0
   6
   7 The check for < 0 is impossible now that
   8 of_clk_get_parent_count() returns an unsigned int. Simplify the
   9 code and update the types.
  10
  11 Acked-by: Felipe Balbi <balbi@kernel.org>
  12 Cc: <linux-usb@vger.kernel.org>
  13 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
  14 (cherry picked from commit 3d755dcc20dd452b52532eca17da40ebbd12aee9)
  15
  16 Change-Id: Iaa38e064d801fb36c855fea51c0443840368e0d3
  17 Signed-off-by: Nitheesh Sekar <nsekar@codeaurora.org>
  18 ---
  19  drivers/usb/dwc3/dwc3-of-simple.c | 9 +++++----
  20  1 file changed, 5 insertions(+), 4 deletions(-)
  21
  22 diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
  23 index 9c9f741..9743353 100644
  24 --- a/drivers/usb/dwc3/dwc3-of-simple.c
  25 +++ b/drivers/usb/dwc3/dwc3-of-simple.c
  26 @@ -42,6 +42,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
  27         struct device           *dev = &pdev->dev;
  28         struct device_node      *np = dev->of_node;
  29
  30 +       unsigned int            count;
  31         int                     ret;
  32         int                     i;
  33
  34 @@ -49,11 +50,11 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
  35         if (!simple)
  36                 return -ENOMEM;
  37
  38 -       ret = of_clk_get_parent_count(np);
  39 -       if (ret < 0)
  40 -               return ret;
  41 +       count = of_clk_get_parent_count(np);
  42 +       if (!count)
  43 +               return -ENOENT;
  44
  45 -       simple->num_clocks = ret;
  46 +       simple->num_clocks = count;
  47
  48         simple->clks = devm_kcalloc(dev, simple->num_clocks,
  49                         sizeof(struct clk *), GFP_KERNEL);
  50 --
  51 2.7.2
  52