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authorLv Yunlong <lyl2019@mail.ustc.edu.cn>2021-03-11 09:30:05 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2021-03-16 05:50:01 +0300
commit2bb817712e2f77486d6ee17e7efaf91997a685f8 (patch)
treeaf64e6deb858d4a3a4227778ed9ab898d592c5da /drivers/scsi/myrs.c
parentfebb0cc847e7efd0b2b6cabf9f0e82b13dbadbec (diff)
downloadlinux-2bb817712e2f77486d6ee17e7efaf91997a685f8.tar.xz
scsi: myrs: Fix a double free in myrs_cleanup()
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: 77266186397c ("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>
Diffstat (limited to 'drivers/scsi/myrs.c')
-rw-r--r--drivers/scsi/myrs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c
index 4adf9ded296a..329fd025c718 100644
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -2273,12 +2273,12 @@ 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);