Re: misaligned memory access in cmdlinepart.c

["Timofei V. Bondarenko" <timm@ipi.ac.ru>]

Jörn Engel wrote:
> On Mon, 6 June 2005 20:49:01 +0400, Timofei V. Bondarenko wrote:
> 
>>Jörn Engel wrote:
>>
>>>Hmm.  Well, I just don't care enough, let's keep it.
>>>
>>>Can you test the current patch and see if it works for you?  Once
>>>you've confirmed that, I'll commit it.
>>
>>Yes. I've tested it on the uclinux-bf533.
> 
> 
> Doesn't apply with patch -p1.  Can you respin the patch against mtd
> cvs and make sure it does?  If in doubt, read:
> http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt

Ok, sorry for noise.
Is it good enough?

diff -u -p -r1.17 cmdlinepart.c
--- mtd/drivers/mtd/cmdlinepart.c	26 Nov 2004 11:18:47 -0000	1.17
+++ mtd/drivers/mtd/cmdlinepart.c	7 Jun 2005 08:02:00 -0000
@@ -239,7 +239,8 @@ static int mtdpart_setup_real(char *s)
  				&num_parts,	/* out: number of parts */
  				0,		/* first partition */
  				(unsigned char**)&this_mtd, /* out: extra mem */
-				mtd_id_len + 1 + sizeof(*this_mtd));
+				mtd_id_len + 1 + sizeof(*this_mtd) +
+                                sizeof(void*)-1 /*alignment*/);
  		if(!parts)
  		{
  			/*
@@ -252,7 +253,10 @@ static int mtdpart_setup_real(char *s)
  			 return 0;
  		 }

-		/* enter results */	
+		/* align this_mtd */
+                this_mtd = (struct cmdline_mtd_partition *)
+                    ALIGN((unsigned long)this_mtd, sizeof(void*));
+		/* enter results */
  		this_mtd->parts = parts;
  		this_mtd->num_parts = num_parts;
  		this_mtd->mtd_id = (char*)(this_mtd + 1);