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Subject[PATCH] mtip32xx: fix error handling in mtip_init()
From
Date
Sweep registered blkdev when pci_register_driver has failed.

Signed-off-by: Ryosuke Saito <raitosyo@gmail.com>
---
drivers/block/mtip32xx/mtip32xx.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 8eb81c9..1000d19 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3608,18 +3608,25 @@ MODULE_DEVICE_TABLE(pci, mtip_pci_tbl);
*/
static int __init mtip_init(void)
{
+ int error;
+
printk(KERN_INFO MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");

/* Allocate a major block device number to use with this driver. */
- mtip_major = register_blkdev(0, MTIP_DRV_NAME);
- if (mtip_major < 0) {
+ error = register_blkdev(0, MTIP_DRV_NAME);
+ if (error <= 0) {
printk(KERN_ERR "Unable to register block device (%d)\n",
- mtip_major);
+ error);
return -EBUSY;
}
+ mtip_major = error;

/* Register our PCI operations. */
- return pci_register_driver(&mtip_pci_driver);
+ error = pci_register_driver(&mtip_pci_driver);
+ if (error)
+ unregister_blkdev(mtip_major, MTIP_DRV_NAME);
+
+ return error;
}

/*
--
1.7.9.6


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