[PATCH] scsi: zorro7xx: put SCSI host on remove

[Guangshuo Li]

zorro7xx_init_one() obtains a SCSI host through NCR_700_detect(). The
probe failure path drops the host reference with scsi_host_put(), but
the normal remove path does not perform the corresponding cleanup.

As a result, the SCSI host reference remains allocated after the
device is removed.

Call scsi_host_put() after all users of the SCSI host have been torn
down to release the reference acquired during probe.

This issue was found by manual code inspection.

Fixes: 45804fbb00ee ("[SCSI] 53c700: Amiga Zorro NCR53c710 SCSI")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Guangshuo Li <lgs201920130244@xxxxxxxxx>
---
 drivers/scsi/zorro7xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c
index 21c769dc1ecb..a8b0c2d4a9cb 100644
--- a/drivers/scsi/zorro7xx.c
+++ b/drivers/scsi/zorro7xx.c
@@ -164,6 +164,7 @@ static void zorro7xx_remove_one(struct zorro_dev *z)
 	kfree(hostdata);
 	free_irq(host->irq, host);
 	zorro_release_device(z);
+	scsi_host_put(host);
 }
 
 static struct zorro_driver zorro7xx_driver = {
-- 
2.43.0