6.6-stable review patch. If anyone has any objections, please let me know.
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From: Haotian Zhang vulab@iscas.ac.cn
[ Upstream commit acd194d9b5bac419e04968ffa44351afabb50bac ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/sim710.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c index e519df68d603d..70c75ab1453a1 100644 --- 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);