linux-kernel - [PATCH] sd: bad return code of init

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Message-Id: <1401831265-8547-1-git-send-email-clement.calmels@free.fr>
Date:	Tue,  3 Jun 2014 23:34:25 +0200
From:	Clément Calmels <clement.calmels@...e.fr>
To:	JBottomley@...allels.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] sd: bad return code of init_sd

In init_sd function, if kmem_cache_create or mempool_create_slab_pools
calls fail, the error will not be correclty reported because
class_register previously set the value of err to 0.

Signed-off-by: Clément Calmels <clement.calmels@...e.fr>
---
 drivers/scsi/sd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e9689d5..7daa2aa 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3205,12 +3205,14 @@ static int __init init_sd(void)
 					 0, 0, NULL);
 	if (!sd_cdb_cache) {
 		printk(KERN_ERR "sd: can't init extended cdb cache\n");
+		err = -ENOMEM;
 		goto err_out_class;
 	}
 
 	sd_cdb_pool = mempool_create_slab_pool(SD_MEMPOOL_SIZE, sd_cdb_cache);
 	if (!sd_cdb_pool) {
 		printk(KERN_ERR "sd: can't init extended cdb pool\n");
+		err = -ENOMEM;
 		goto err_out_cache;
 	}
 
-- 
2.0.0

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