[SPARC32]: gcc 3.4+ compile fixes

From: Art Haas <ahaas@airmail.net>

Fix casts-as-lvalues and labels left at the end of blocks.

arch/sparc/kernel/sys_sunos.c

@@ -343,7 +343,7 @@ static int sunos_filldir(void * __buf, const char * name, int namlen,
 	put_user(reclen, &dirent->d_reclen);
 	copy_to_user(dirent->d_name, name, namlen);
 	put_user(0, dirent->d_name + namlen);
-	((char *) dirent) += reclen;
+	dirent = (void *)dirent + reclen;
 	buf->curr = dirent;
 	buf->count -= reclen;
 	return 0;
@@ -422,7 +422,7 @@ static int sunos_filldirentry(void * __buf, const char * name, int namlen,
 	put_user(reclen, &dirent->d_reclen);
 	copy_to_user(dirent->d_name, name, namlen);
 	put_user(0, dirent->d_name + namlen);
-	((char *) dirent) += reclen;
+	dirent = (void *)dirent + reclen;
 	buf->curr = dirent;
 	buf->count -= reclen;
 	return 0;

arch/sparc/math-emu/math.c

@@ -327,6 +327,7 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
 #ifdef DEBUG_MATHEMU
 			printk("unknown FPop1: %03lx\n",(insn>>5)&0x1ff);
 #endif
+			break;
 		}
 	} else if ((insn & 0xc1f80000) == 0x81a80000)	/* FPOP2 */ {
 		switch ((insn >> 5) & 0x1ff) {
@@ -340,6 +341,7 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
 #ifdef DEBUG_MATHEMU
 			printk("unknown FPop2: %03lx\n",(insn>>5)&0x1ff);
 #endif
+			break;
 		}
 	}