scsi: sim710: Fix resource leak by adding missing ioport_unmap() calls

The driver calls ioport_map() to map I/O ports in sim710_probe_common()
but never calls ioport_unmap() to release the mapping. This causes
resource leaks in both the error path when request_irq() fails and in
the normal device removal path via sim710_device_remove().

Add ioport_unmap() calls in the out_release error path and in
sim710_device_remove().

Fixes: 56fece20086e ("[PATCH] finally fix 53c700 to use the generic iomem infrastructure")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20251029032555.1476-1-vulab@iscas.ac.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c
index e519df68d603d597d82587d3e10bcd2df8e72179..70c75ab1453a16069e2dd9f816c50915be49043a 100644 (file)
--- a/drivers/scsi/sim710.c
+++ b/drivers/scsi/sim710.c
@@ -133,6 +133,7 @@ static int sim710_probe_common(struct device *dev, unsigned long base_addr,
  out_put_host:
        scsi_host_put(host);
  out_release:
+       ioport_unmap(hostdata->base);
        release_region(base_addr, 64);
  out_free:
        kfree(hostdata);
@@ -148,6 +149,7 @@ static int sim710_device_remove(struct device *dev)
 
        scsi_remove_host(host);
        NCR_700_release(host);
+       ioport_unmap(hostdata->base);
        kfree(hostdata);
        free_irq(host->irq, host);
        release_region(host->base, 64);