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* [PATCH] scsi: zorro7xx: put SCSI host on remove
@ 2026-09-18 18:02 Guangshuo Li
  2026-09-21 15:17 ` krzk
  0 siblings, 1 reply; 3+ messages in thread
From: Guangshuo Li @ 2026-09-18 18:02 UTC (permalink / raw)
  To: James E.J. Bottomley, Martin K. Petersen, James Bottomley,
	Geert Uytterhoeven, linux-scsi, linux-kernel
  Cc: Guangshuo Li, stable

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@vger.kernel.org
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
---
 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


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2026-09-22  2:57 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2026-09-18 18:02 [PATCH] scsi: zorro7xx: put SCSI host on remove Guangshuo Li
2026-09-21 15:17 ` krzk
2026-09-22  2:57   ` Guangshuo Li

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