exec.c commentary typos

diff -X excl -rduNp qemu.oorig/exec.c qemu/exec.c
@@ -2168,7 +2168,7 @@ void cpu_physical_memory_rw(target_phys_
     target_phys_addr_t page;
     unsigned long pd;
     PhysPageDesc *p;
-    
+
     while (len > 0) {
         page = addr & TARGET_PAGE_MASK;
         l = (page + TARGET_PAGE_SIZE) - addr;

@@ -2180,22 +2180,22 @@ void cpu_physical_memory_rw(target_phys_
         } else {
             pd = p->phys_offset;
         }
-        
+
         if (is_write) {
             if ((pd & ~TARGET_PAGE_MASK) != 0) {
                 io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
                 if (l >= 4 && ((addr & 3) == 0)) {
-                    /* 32 bit read access */
+                    /* 32 bit write access */
                     val = ldl_p(buf);
                     io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
                     l = 4;
                 } else if (l >= 2 && ((addr & 1) == 0)) {
-                    /* 16 bit read access */
+                    /* 16 bit write access */
                     val = lduw_p(buf);
                     io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val);
                     l = 2;
                 } else {
-                    /* 8 bit access */
+                    /* 8 bit write access */
                     val = ldub_p(buf);
                     io_mem_write[io_index][0](io_mem_opaque[io_index], addr, val);
                     l = 1;