---

yaml --- r: 76900 b: refs/heads/master c: 0106372 h: refs/heads/master v: v3
git-mirror · Jan 23, 2008 · d20010d · d20010d
1 parent e8e1b4a
commit d20010d
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 93f8fecbe72bc3c121f3605dd198ff39ef358522
+refs/heads/master: 0106372db6dc135f300035ce8e93cddd7283a26a
diff --git a/trunk/drivers/ata/libata-core.c b/trunk/drivers/ata/libata-core.c
@@ -5309,12 +5309,15 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
 	bytes = (bc_hi << 8) | bc_lo;
 
 	/* shall be cleared to zero, indicating xfer of data */
-	if (ireason & (1 << 0))
+	if (unlikely(ireason & (1 << 0)))
 		goto err_out;
 
 	/* make sure transfer direction matches expected */
 	i_write = ((ireason & (1 << 1)) == 0) ? 1 : 0;
-	if (do_write != i_write)
+	if (unlikely(do_write != i_write))
+		goto err_out;
+
+	if (unlikely(!bytes))
 		goto err_out;
 
 	VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);