x86/pat, mm: Make track_pfn_insert() return void

It only returns 0 so we can save us the testing of its retval
everywhere.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: mcgrof@suse.com
Cc: dri-devel@lists.freedesktop.org
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dan.j.williams@intel.com
Cc: torvalds@linux-foundation.org
Link: http://lkml.kernel.org/r/20161026174839.rusfxkm3xt4ennhe@pd.tnic
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/mm/memory.c b/mm/memory.c
index e18c57bdc75c..33f45edf8272 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1637,8 +1637,8 @@ int vm_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr,
 
         if (addr < vma->vm_start || addr >= vma->vm_end)
                 return -EFAULT;
-        if (track_pfn_insert(vma, &pgprot, __pfn_to_pfn_t(pfn, PFN_DEV)))
-                return -EINVAL;
+
+        track_pfn_insert(vma, &pgprot, __pfn_to_pfn_t(pfn, PFN_DEV));
 
         ret = insert_pfn(vma, addr, __pfn_to_pfn_t(pfn, PFN_DEV), pgprot);
 
@@ -1655,8 +1655,8 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
 
         if (addr < vma->vm_start || addr >= vma->vm_end)
                 return -EFAULT;
-        if (track_pfn_insert(vma, &pgprot, pfn))
-                return -EINVAL;
+
+        track_pfn_insert(vma, &pgprot, pfn);
 
         /*
          * If we don't have pte special, then we have to use the pfn_valid()