diff options
| author | Jean Delvare <jdelvare@suse.de> | 2009-04-01 13:11:29 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-02 10:24:15 -0700 |
| commit | 14ccf7620aad576505bbd545788009eeaed9e848 (patch) | |
| tree | 9ba8cf19ca11f9a8c984a0bf201113107e857b72 /drivers | |
| parent | 0578833e27eb361c3d569fcb654a3c6d4183bc94 (diff) | |
SCSI: libiscsi: fix iscsi pool error path again
upstream commit: fd6e1c14b73dbab89cb76af895d5612e4a8b5522
Le lundi 30 mars 2009, Chris Wright a écrit :
> q->queue could be ERR_PTR(-ENOMEM) which will break unwinding
> on error. Make iscsi_pool_free more defensive.
>
Making the freeing of q->queue dependent on q->pool being set looks
really weird (although it is correct at the moment. But this seems
to be fixable in a much simpler way.
With the benefit that only the error case is slowed down. In both
cases we have a problem if q->queue contains an error value but it's
not -ENOMEM. Apparently this can't happen today, but it doesn't feel
right to assume this will always be true. Maybe it's the right time
to fix this as well.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
[chrisw: this is a fixlet to f474a37b, also in -stable]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/libiscsi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 97d27d78f4f..cb009f39d83 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1811,8 +1811,10 @@ iscsi_pool_init(struct iscsi_pool *q, int max, void ***items, int item_size) q->queue = kfifo_init((void*)q->pool, max * sizeof(void*), GFP_KERNEL, NULL); - if (q->queue == ERR_PTR(-ENOMEM)) + if (IS_ERR(q->queue)) { + q->queue = NULL; goto enomem; + } for (i = 0; i < max; i++) { q->pool[i] = kzalloc(item_size, GFP_KERNEL); |