File linux-2.6.39-Staging-zram-make-zram_read-return-a-bio-error-if-th.patch of Package kernel-adaptation-n900

File linux-2.6.39-Staging-zram-make-zram_read-return-a-bio-error-if-th.patch of Package kernel-adaptation-n900 (Revision 719a0413fb6e1438eeb2510db72083f7)

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From 24189776e2e2026855c061e3487998dbb864e145 Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Fri, 17 Dec 2010 17:03:15 +0100
Subject: [PATCH] Staging: zram: make zram_read return a bio error if the device is not initialized

Make zram_read() return a bio error if the device is not initialized
instead of pretending nothing happened.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/staging/zram/zram_drv.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 080e85f..2a18c81 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -208,8 +208,7 @@ static int zram_read(struct zram *zram, struct bio *bio)
 	struct bio_vec *bvec;
 
 	if (unlikely(!zram->init_done)) {
-		set_bit(BIO_UPTODATE, &bio->bi_flags);
-		bio_endio(bio, 0);
+		bio_endio(bio, -ENXIO);
 		return 0;
 	}
 
-- 
1.7.0.4