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
commit 1240abf4b71f632f0117b056e22488e4d9808938 upstream.
The driver calls reset_control_get_optional_exclusive() but never calls reset_control_put() in error paths or in the remove function. This causes a resource leak when probe fails after successfully acquiring the reset control, or when the driver is unloaded.
Switch to devm_reset_control_get_optional_exclusive() to automatically manage the reset control resource.
Fixes: a4b80242d046 ("media: st-rc: explicitly request exclusive reset control") Cc: stable@vger.kernel.org Signed-off-by: Haotian Zhang vulab@iscas.ac.cn Reviewed-by: Patrice Chotard patrice.chotard@foss.st.com Signed-off-by: Sean Young sean@mess.org Signed-off-by: Hans Verkuil hverkuil+cisco@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/rc/st_rc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/rc/st_rc.c +++ b/drivers/media/rc/st_rc.c @@ -283,7 +283,7 @@ static int st_rc_probe(struct platform_d else rc_dev->rx_base = rc_dev->base;
- rc_dev->rstc = reset_control_get_optional_exclusive(dev, NULL); + rc_dev->rstc = devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(rc_dev->rstc)) { ret = PTR_ERR(rc_dev->rstc); goto err;