I was using Coccinelle with the mutex_unlock semantic patch, and it
unconvered this problem. It appears to be a valid missing unlock issue.
This change should correct it by moving the unlock below the label.

This patch is against the mainline kernel.

Cc: Julia Lawall <julia@diku.dk>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NDaniel Walker <dwalker@fifo99.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Fix incorrect spelling
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch fixes these compiler warnings:

arch/arm/plat-omap/iovmm.c: In function 'vmap_sg':
arch/arm/plat-omap/iovmm.c:202: warning: passing argument 1 of
 'flush_cache_vmap' makes integer from pointer without a cast
arch/arm/plat-omap/iovmm.c:202: warning: passing argument 2 of
 'flush_cache_vmap' makes integer from pointer without a cast
arch/arm/plat-omap/iovmm.c: In function 'sgtable_fill_vmalloc':
arch/arm/plat-omap/iovmm.c:393: warning: passing argument 1 of
 'flush_cache_vmap' makes integer from pointer without a cast
arch/arm/plat-omap/iovmm.c:393: warning: passing argument 2 of
 'flush_cache_vmap' makes integer from pointer without a cast
Signed-off-by: NSanjeev Premi <premi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The second argument should be the end address, not the
length. Actually there will not be any effect on the behavior of this
driver since flush_cache_vmap() calls flush_cache_all() in the end.
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch provides a device drivers, which has a omap iommu, with
address mapping APIs between device virtual address(iommu), physical
address and MPU virtual address.

There are 4 possible patterns for iommu virtual address(iova/da) mapping.

    |iova/			  mapping		iommu_		page
    | da	pa	va	(d)-(p)-(v)		function	type
  ---------------------------------------------------------------------------
  1 | c		c	c	 1 - 1 - 1	  _kmap() / _kunmap()	s
  2 | c		c,a	c	 1 - 1 - 1	_kmalloc()/ _kfree()	s
  3 | c		d	c	 1 - n - 1	  _vmap() / _vunmap()	s
  4 | c		d,a	c	 1 - n - 1	_vmalloc()/ _vfree()	n*

    'iova':	device iommu virtual address
    'da':	alias of 'iova'
    'pa':	physical address
    'va':	mpu virtual address

    'c':	contiguous memory area
    'd':	dicontiguous memory area
    'a':	anonymous memory allocation
    '()':	optional feature

    'n':	a normal page(4KB) size is used.
    's':	multiple iommu superpage(16MB, 1MB, 64KB, 4KB) size is used.

    '*':	not yet, but feasible.
Signed-off-by: NHiroshi DOYU <Hiroshi.DOYU@nokia.com>