sparc32: mm: Fix argument checking in __srmmu_get_nocache()

The 'size' argument to __srmmu_get_nocache() is a number of bytes not
a shift value, so fix up the sanity checking to treat it properly.

Cc: "David S. Miller" <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Signed-off-by: Will Deacon <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

arch/sparc/mm/srmmu.c

···
  */
 static void *__srmmu_get_nocache(int size, int align)
 {
-	int offset;
+	int offset, minsz = 1 << SRMMU_NOCACHE_BITMAP_SHIFT;
 	unsigned long addr;
 
-	if (size < SRMMU_NOCACHE_BITMAP_SHIFT) {
+	if (size < minsz) {
 		printk(KERN_ERR "Size 0x%x too small for nocache request\n",
 		       size);
-		size = SRMMU_NOCACHE_BITMAP_SHIFT;
+		size = minsz;
 	}
-	if (size & (SRMMU_NOCACHE_BITMAP_SHIFT - 1)) {
-		printk(KERN_ERR "Size 0x%x unaligned int nocache request\n",
+	if (size & (minsz - 1)) {
+		printk(KERN_ERR "Size 0x%x unaligned in nocache request\n",
 		       size);
-		size += SRMMU_NOCACHE_BITMAP_SHIFT - 1;
+		size += minsz - 1;
 	}
 	BUG_ON(align > SRMMU_NOCACHE_ALIGN_MAX);