From: Jens Axboe <jens.axboe@oracle.com>
Date: Wed, 7 May 2008 11:26:27 +0000 (+0200)
Subject: block: use unitialized_var() in bio_alloc_bioset()
X-Git-Tag: v2.6.26-rc2~33^2~2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eeae1d48c011839d9e1cdc1e8aacf0193c9d8197;p=linux-2.6

block: use unitialized_var() in bio_alloc_bioset()

Better than setting idx to some random value and it silences the
same bogus gcc warning.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/fs/bio.c b/fs/bio.c
index 799f86deff..2fa04ff867 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -158,7 +158,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 
 		bio_init(bio);
 		if (likely(nr_iovecs)) {
-			unsigned long idx = 0; /* shut up gcc */
+			unsigned long uninitialized_var(idx);
 
 			bvl = bvec_alloc_bs(gfp_mask, nr_iovecs, &idx, bs);
 			if (unlikely(!bvl)) {