[PATCHv3 3/8] dmaengine: ti: omap-dma: fix CPU PM notifier leak

[Rosen Penev <rosenp@gmail.com>]

The CPU PM notifier may be registered for needs_busy_check on omap2
rather than may_lose_context on omap3. The remove path only checked
may_lose_context, leaving the omap2 notifier registered during driver
removal.

Check both configuration flags before unregistering the notifier.

Fixes: f4cfa36dab67 ("dmaengine: ti: omap-dma: Use cpu notifier to block idle for omap2")
Cc: stable@vger.kernel.org
Assisted-by: Codex:GPT-5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/dma/ti/omap-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ti/omap-dma.c b/drivers/dma/ti/omap-dma.c
index 15be3c90440a..0ad8da8b35f8 100644
--- a/drivers/dma/ti/omap-dma.c
+++ b/drivers/dma/ti/omap-dma.c
@@ -1854,7 +1854,7 @@ static void omap_dma_remove(struct platform_device *pdev)
 	struct omap_dmadev *od = platform_get_drvdata(pdev);
 	int irq;
 
-	if (od->cfg->may_lose_context) {
+	if (od->cfg->needs_busy_check || od->cfg->may_lose_context) {
 		cpu_pm_unregister_notifier(&od->nb);
 		synchronize_rcu();
 	}
-- 
2.54.0