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libata: fix probe_ent alloc/free bugs

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ata_probe_ent_alloc() had a temporary hack such that devm_kzalloc()
was used for allocation if devres had been previously initialized on
the device; otherwise, plain kzalloc() was used.  This was to make the
code useable from both the old and devres-aware libata drivers during
transition.  This hack made ata_sas_port_alloc() unable to determine
how the probe_ent is allocated, causing double free in some cases.

Remove the now-unneeded hack and make ata_sas_port_alloc() use
devm_kfree().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo
2007-02-18 02:24:37 +09:00
committed by Jeff Garzik
parent 8d9db2d2fb
commit 4d05447ec7
2 changed files with 2 additions and 6 deletions
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2
drivers/ata/libata-scsi.c
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@ -3235,7 +3235,7 @@ struct ata_port *ata_sas_port_alloc(struct ata_host *host,
ata_port_init(ap, host, ent, 0);
ap->lock = shost->host_lock;
kfree(ent);
devm_kfree(host->dev, ent);
return ap;
}
EXPORT_SYMBOL_GPL(ata_sas_port_alloc);