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scsi: myrs: Fix a double free in myrs_cleanup() 

commit 2bb817712e2f77486d6ee17e7efaf91997a685f8 upstream.

In myrs_cleanup(), cs->mmio_base will be freed twice by iounmap().

Link: https://lore.kernel.org/r/20210311063005.9963-1-lyl2019@mail.ustc.edu.cn
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lv Yunlong 2021-03-10 22:30:05 -08:00 committed by Greg Kroah-Hartman
parent eb46392d32
commit 86fd6c0d22
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/myrs.c
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@ -2274,12 +2274,12 @@ static void myrs_cleanup(struct myrs_hba *cs)
if (cs->mmio_base) {
cs->disable_intr(cs);
iounmap(cs->mmio_base);
cs->mmio_base = NULL;
}
if (cs->irq)
free_irq(cs->irq, cs);
if (cs->io_addr)
release_region(cs->io_addr, 0x80);
iounmap(cs->mmio_base);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
scsi_host_put(cs->host);