lib/swiotlb.c: cleanups

There's a pointlessly braced block of code in there.  Remove the braces and
save a tabstop.

Cc: Andi Kleen <ak@suse.de>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/swiotlb.c

@@ -331,7 +331,6 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
 	 * request and allocate a buffer from that IO TLB pool.
 	 */
 	spin_lock_irqsave(&io_tlb_lock, flags);
-	{
 	index = ALIGN(io_tlb_index, stride);
 	if (index >= io_tlb_nslabs)
 		index = 0;
@@ -348,23 +347,22 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
 		}
 
 		/*
-			 * If we find a slot that indicates we have 'nslots'
-			 * number of contiguous buffers, we allocate the
-			 * buffers from that slot and mark the entries as '0'
-			 * indicating unavailable.
+		 * If we find a slot that indicates we have 'nslots' number of
+		 * contiguous buffers, we allocate the buffers from that slot
+		 * and mark the entries as '0' indicating unavailable.
 		 */
 		if (io_tlb_list[index] >= nslots) {
 			int count = 0;
 
 			for (i = index; i < (int) (index + nslots); i++)
 				io_tlb_list[i] = 0;
-				for (i = index - 1; (OFFSET(i, IO_TLB_SEGSIZE) != IO_TLB_SEGSIZE -1) && io_tlb_list[i]; i--)
+			for (i = index - 1; (OFFSET(i, IO_TLB_SEGSIZE) != IO_TLB_SEGSIZE - 1) && io_tlb_list[i]; i--)
 				io_tlb_list[i] = ++count;
 			dma_addr = io_tlb_start + (index << IO_TLB_SHIFT);
 
 			/*
-				 * Update the indices to avoid searching in
-				 * the next round.
+			 * Update the indices to avoid searching in the next
+			 * round.
 			 */
 			io_tlb_index = ((index + nslots) < io_tlb_nslabs
 					? (index + nslots) : 0);
@@ -376,11 +374,10 @@ map_single(struct device *hwdev, char *buffer, size_t size, int dir)
 			index = 0;
 	} while (index != wrap);
 
-  not_found:
+not_found:
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
 	return NULL;
-	}
-  found:
+found:
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
 
 	/*