ALSA: emu10k1 - simplify the last fix

Clean up the previous commit for fixing memory leaks.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/emu10k1/memory.c

@@ -465,15 +465,12 @@ static int synth_alloc_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk
 		struct page *p = alloc_page(GFP_KERNEL | GFP_DMA32 |
 					    __GFP_NOWARN);
 		if (!p || (page_to_pfn(p) & ~(emu->dma_mask >> PAGE_SHIFT))) {
+			if (p)
+				__free_page(p);
 			/* try to allocate from <16MB zone */
-			struct page *p1 =
-				alloc_page(GFP_ATOMIC | GFP_DMA |
+			p = alloc_page(GFP_ATOMIC | GFP_DMA |
 				       __GFP_NORETRY | /* no OOM-killer */
 				       __GFP_NOWARN);
-			/* free page outside dma_mask range */
-			if (p)
-				free_page((unsigned long)page_address(p));
-			p = p1;
 		}
 		if (!p) {
 			__synth_free_pages(emu, first_page, page - 1);