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

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[ Upstream commit acd194d9b5 ]

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: 56fece2008 ("[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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Haotian Zhang
2026-01-11 15:21:23 +01:00
committed by Greg Kroah-Hartman
parent 39c754efb3
commit 796037ca2f
1 changed files with 2 additions and 0 deletions
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drivers/scsi/sim710.c
+2
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@@ -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);