3.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sifan Naeem <sifan.naeem@xxxxxxxxxx>
commit 80ccf4ad06dc9d2f06a8347b2d309cdc959f72b3 upstream.
img_ir_remove() passes a pointer to the ISR function as the 2nd
parameter to irq_free() instead of a pointer to the device data
structure.
This issue causes unloading img-ir module to fail with the below
warning after building and loading img-ir as a module.
WARNING: CPU: 2 PID: 155 at ../kernel/irq/manage.c:1278
__free_irq+0xb4/0x214() Trying to free already-free IRQ 58
Modules linked in: img_ir(-)
CPU: 2 PID: 155 Comm: rmmod Not tainted 3.14.0 #55 ...
Call Trace:
...
[<8048d420>] __free_irq+0xb4/0x214
[<8048d6b4>] free_irq+0xac/0xf4
[<c009b130>] img_ir_remove+0x54/0xd4 [img_ir] [<8073ded0>]
platform_drv_remove+0x30/0x54 ...
Fixes: 160a8f8aec4d ("[media] rc: img-ir: add base driver")
Signed-off-by: Sifan Naeem <sifan.naeem@xxxxxxxxxx>
Acked-by: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/rc/img-ir/img-ir-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/rc/img-ir/img-ir-core.c
+++ b/drivers/media/rc/img-ir/img-ir-core.c
@@ -146,7 +146,7 @@ static int img_ir_remove(struct platform
{
struct img_ir_priv *priv = platform_get_drvdata(pdev);
- free_irq(priv->irq, img_ir_isr);
+ free_irq(priv->irq, priv);
img_ir_remove_hw(priv);
img_ir_remove_raw(priv);
--
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