[SCSI] sg.c: Fix bad error handling in

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I got a NULL derefrence in cdev_del+1 when called from sg_remove. By looking at
the code of sg_add, sg_alloc and sg_remove (all in drivers/scsi/sg.c) I found
out that sg_add is calling sg_alloc but if it fails afterwards it does not
deallocate the space that was allocated in sg_alloc and the redundant entry has
NULL in cdev. When sg_remove is being called, it tries to perform cdev_del to
this NULL cdev and fails.

Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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Ishai Rabinovitz 2006-06-29 16:39:54 +03:00 • committed by James Bottomley

parent 0f13fc09db

commit 454e8957eb

1 changed files with 9 additions and 1 deletions

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drivers/scsi/sg.c

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