Re: [PATCH 2/4] arm: let set_memory_xx(addr, 0) succeed.

[Laura Abbott]

On 01/23/2016 07:05 AM, mika.pentt...@nextfour.com wrote:

From: Mika Penttilä <mika.pentt...@nextfour.com>

This makes set_memory_xx() consistent with x86.

Signed-off-by: Mika Penttilä mika.pentt...@nextfour.com

---
  arch/arm/mm/pageattr.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/arch/arm/mm/pageattr.c b/arch/arm/mm/pageattr.c
index be7fe4b..9edf6b0 100644
--- a/arch/arm/mm/pageattr.c
+++ b/arch/arm/mm/pageattr.c
@@ -49,6 +49,9 @@ static int change_memory_common(unsigned long addr, int 
numpages,
                WARN_ON_ONCE(1);
        }

+       if (!numpages)
+               return 0;
+
        if (start < MODULES_VADDR || start >= MODULES_END)
                return -EINVAL;

Reviewed-by: Laura Abbott <labb...@redhat.com>