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Subject[PATCH] scsi: Fix a double free in myrs_cleanup
Date
In myrs_cleanup, cs->mmio_base will be freed twice by
iounmap().

Fixes: 77266186397c6 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
---
drivers/scsi/myrs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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);
--
2.25.1

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