[PATCH] clk: vt8500: Missing breaks in vtwm_pll_round_rate/_set_rate.

[PATCH] clk: vt8500: Missing breaks in vtwm_pll_round_rate/_set_rate.

[Tony Prisk]

The case of PLL_TYPE_WM8750 in both these functions is missing a break
statement causing a fall-through to the default: case.

Insert the missing break statements.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
---
Mike,

Any chance this can still go in as a fix for 3.9
The fault makes it impossible to set the PLL clocks on WM8750 and later SoCs.

Regards
Tony P
 drivers/clk/clk-vt8500.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
index 09c6331..debf688 100644
--- a/drivers/clk/clk-vt8500.c
+++ b/drivers/clk/clk-vt8500.c
@@ -488,6 +488,7 @@ static int vtwm_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 	case PLL_TYPE_WM8750:
 		wm8750_find_pll_bits(rate, parent_rate, &filter, &mul, &div1, &div2);
 		pll_val = WM8750_BITS_TO_VAL(filter, mul, div1, div2);
+		break;
 	default:
 		pr_err("%s: invalid pll type\n", __func__);
 		return 0;
@@ -523,6 +524,7 @@ static long vtwm_pll_round_rate(struct clk_hw *hw, unsigned long rate,
 	case PLL_TYPE_WM8750:
 		wm8750_find_pll_bits(rate, *prate, &filter, &mul, &div1, &div2);
 		round_rate = WM8750_BITS_TO_FREQ(*prate, mul, div1, div2);
+		break;
 	default:
 		round_rate = 0;
 	}
-- 
1.7.9.5

[PATCH] ARM: KVM: Add missing break;

[Joe Perches]

commit 3401d54696f ("KVM: ARM: Introduce KVM_ARM_SET_DEVICE_ADDR ioctl")
added the case, but omitted adding break;

Add it.

Found with grep version 2.54 pattern:

$ grep -rP --include=*.[ch] "\b(\w+)\s*=[^;]+;\s*(?:case\s+\w+:|default:)\s*\1\s*="

Signed-off-by: Joe Perches <joe@perches.com>
---
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 5777e0c..b9f2228 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -198,6 +198,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 		break;
 	case KVM_CAP_ARM_SET_DEVICE_ADDR:
 		r = 1;
+		break;
 	case KVM_CAP_NR_VCPUS:
 		r = num_online_cpus();
 		break;

[PATCH] ARM: KVM: Add missing break;

[Marc Zyngier]

Hi Joe,

On Sat, 13 Apr 2013 22:55:45 -0700, Joe Perches <joe@perches.com> wrote:
> commit 3401d54696f ("KVM: ARM: Introduce KVM_ARM_SET_DEVICE_ADDR ioctl")
> added the case, but omitted adding break;

[...]

Already reported here:
http://lists.infradead.org/pipermail/linux-arm-kernel/2013-April/160127.html

> $ grep -rP --include=*.[ch]
> "\b(\w+)\s*=[^;]+;\s*(?:case\s+\w+:|default:)\s*\1\s*="

Cool regexp! :-)
 
Cheers,

        M.
-- 
Fast, cheap, reliable. Pick two.

[PATCH] clk: vt8500: Missing breaks in vtwm_pll_round_rate/_set_rate.

[Mike Turquette]

Quoting Tony Prisk (2013-04-13 22:28:35)
> The case of PLL_TYPE_WM8750 in both these functions is missing a break
> statement causing a fall-through to the default: case.
> 
> Insert the missing break statements.
> 
> Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
> ---
> Mike,
> 
> Any chance this can still go in as a fix for 3.9
> The fault makes it impossible to set the PLL clocks on WM8750 and later SoCs.

Definitely not too late for fixes.  Taken into clk-next.

Thanks,
Mike

> 
> Regards
> Tony P
>  drivers/clk/clk-vt8500.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
> index 09c6331..debf688 100644
> --- a/drivers/clk/clk-vt8500.c
> +++ b/drivers/clk/clk-vt8500.c
> @@ -488,6 +488,7 @@ static int vtwm_pll_set_rate(struct clk_hw *hw, unsigned long rate,
>         case PLL_TYPE_WM8750:
>                 wm8750_find_pll_bits(rate, parent_rate, &filter, &mul, &div1, &div2);
>                 pll_val = WM8750_BITS_TO_VAL(filter, mul, div1, div2);
> +               break;
>         default:
>                 pr_err("%s: invalid pll type\n", __func__);
>                 return 0;
> @@ -523,6 +524,7 @@ static long vtwm_pll_round_rate(struct clk_hw *hw, unsigned long rate,
>         case PLL_TYPE_WM8750:
>                 wm8750_find_pll_bits(rate, *prate, &filter, &mul, &div1, &div2);
>                 round_rate = WM8750_BITS_TO_FREQ(*prate, mul, div1, div2);
> +               break;
>         default:
>                 round_rate = 0;
>         }
> -- 
> 1.7.9.5