Re: [PATCH 07/13] maestro3 vfree NULL check fixup

[Jesper Juhl <jesper.juhl@gmail.com>]

On Friday 24 February 2006 22:18, Jesper Juhl wrote:
> On 2/24/06, Jesper Juhl <jesper.juhl@gmail.com> wrote:
> > On Friday 24 February 2006 22:09, Zach Brown wrote:
> > > Jesper Juhl wrote:
> > > > vfree() checks for NULL, no need to do it explicitly.
> > >
> > > >  static void free_dsp_suspendmem(struct m3_card *card)
> > > >  {
> > > > -   if(card->suspend_mem)
> > > > -       vfree(card->suspend_mem);
> > > > +    vfree(card->suspend_mem);
> > > >  }
> > >
> > > eh, I'd just get rid of the helper and call vfree() from both sites.
> > >
> > makes perfect sense, I just looked for vfree use - should have checked more
> > in-depth.
> >
[snip]
> Arrgh, I'm an idiot. That patch is wrong.
> 
> Sorry, updated patch in 2 min.
> 

Don't check pointers for NULL before calling vfree and get rid
of a pointless helper function in sound/oss/maestro3.c


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---

 sound/oss/maestro3.c |   10 ++--------
 1 files changed, 2 insertions(+), 8 deletions(-)

--- linux-2.6.16-rc4-mm2-orig/sound/oss/maestro3.c	2006-02-24 19:25:49.000000000 +0100
+++ linux-2.6.16-rc4-mm2/sound/oss/maestro3.c	2006-02-24 22:19:48.000000000 +0100
@@ -2582,15 +2582,9 @@ static int alloc_dsp_suspendmem(struct m
 
     return 0;
 }
-static void free_dsp_suspendmem(struct m3_card *card)
-{
-   if(card->suspend_mem)
-       vfree(card->suspend_mem);
-}
 
 #else
 #define alloc_dsp_suspendmem(args...) 0
-#define free_dsp_suspendmem(args...) 
 #endif
 
 /*
@@ -2717,7 +2711,7 @@ out:
     if(ret) {
         if(card->iobase)
             release_region(pci_resource_start(pci_dev, 0), pci_resource_len(pci_dev, 0));
-        free_dsp_suspendmem(card);
+        vfree(card->suspend_mem);
         if(card->ac97) {
             unregister_sound_mixer(card->ac97->dev_mixer);
             kfree(card->ac97);
@@ -2760,7 +2754,7 @@ static void m3_remove(struct pci_dev *pc
         }
 
         release_region(card->iobase, 256);
-        free_dsp_suspendmem(card);
+        vfree(card->suspend_mem);
         kfree(card);
     }
     devs = NULL;