| Message ID | 20241116080938.3798365-1-joe@pf.is.s.u-tokyo.ac.jp (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | usb: typec: fix OF node reference leaks in anx7411_typec_switch_probe() | expand |
On Sat, Nov 16, 2024 at 05:09:38PM +0900, Joe Hattori wrote: > The refcounts of the OF nodes obtained in by of_get_child_by_name() > calls in anx7411_typec_switch_probe() are not decremented, so add > fwnode_handle_put() calls to anx7411_unregister_switch() and > anx7411_unregister_mux(). > > Fixes: e45d7337dc0e ("usb: typec: anx7411: Use of_get_child_by_name() instead of of_find_node_by_name()") > Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> > --- > drivers/usb/typec/anx7411.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c > index d1e7c487ddfb..7e61c3ac8777 100644 > --- a/drivers/usb/typec/anx7411.c > +++ b/drivers/usb/typec/anx7411.c > @@ -29,6 +29,8 @@ > #include <linux/workqueue.h> > #include <linux/power_supply.h> > > +#include "mux.h" > + > #define TCPC_ADDRESS1 0x58 > #define TCPC_ADDRESS2 0x56 > #define TCPC_ADDRESS3 0x54 > @@ -1088,6 +1090,7 @@ static void anx7411_unregister_mux(struct anx7411_data *ctx) > { > if (ctx->typec.typec_mux) { > typec_mux_unregister(ctx->typec.typec_mux); > + fwnode_handle_put(ctx->typec.typec_mux->dev.fwnode); > ctx->typec.typec_mux = NULL; > } > } > @@ -1096,6 +1099,7 @@ static void anx7411_unregister_switch(struct anx7411_data *ctx) > { > if (ctx->typec.typec_switch) { > typec_switch_unregister(ctx->typec.typec_switch); > + fwnode_handle_put(ctx->typec.typec_switch->dev.fwnode); > ctx->typec.typec_switch = NULL; > } > } > -- > 2.34.1 > > Hi, This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him a patch that has triggered this response. He used to manually respond to these common problems, but in order to save his sanity (he kept writing the same thing over and over, yet to different people), I was created. Hopefully you will not take offence and will fix the problem in your patch and resubmit it so that it can be accepted into the Linux kernel tree. You are receiving this message because of the following common error(s) as indicated below: - You have marked a patch with a "Fixes:" tag for a commit that is in an older released kernel, yet you do not have a cc: stable line in the signed-off-by area at all, which means that the patch will not be applied to any older kernel releases. To properly fix this, please follow the documented rules in the Documentation/process/stable-kernel-rules.rst file for how to resolve this. If you wish to discuss this problem further, or you have questions about how to resolve this issue, please feel free to respond to this email and Greg will reply once he has dug out from the pending patches received from other developers. thanks, greg k-h's patch email bot
diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c index d1e7c487ddfb..7e61c3ac8777 100644 --- a/drivers/usb/typec/anx7411.c +++ b/drivers/usb/typec/anx7411.c @@ -29,6 +29,8 @@ #include <linux/workqueue.h> #include <linux/power_supply.h> +#include "mux.h" + #define TCPC_ADDRESS1 0x58 #define TCPC_ADDRESS2 0x56 #define TCPC_ADDRESS3 0x54 @@ -1088,6 +1090,7 @@ static void anx7411_unregister_mux(struct anx7411_data *ctx) { if (ctx->typec.typec_mux) { typec_mux_unregister(ctx->typec.typec_mux); + fwnode_handle_put(ctx->typec.typec_mux->dev.fwnode); ctx->typec.typec_mux = NULL; } } @@ -1096,6 +1099,7 @@ static void anx7411_unregister_switch(struct anx7411_data *ctx) { if (ctx->typec.typec_switch) { typec_switch_unregister(ctx->typec.typec_switch); + fwnode_handle_put(ctx->typec.typec_switch->dev.fwnode); ctx->typec.typec_switch = NULL; } }
The refcounts of the OF nodes obtained in by of_get_child_by_name() calls in anx7411_typec_switch_probe() are not decremented, so add fwnode_handle_put() calls to anx7411_unregister_switch() and anx7411_unregister_mux(). Fixes: e45d7337dc0e ("usb: typec: anx7411: Use of_get_child_by_name() instead of of_find_node_by_name()") Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> --- drivers/usb/typec/anx7411.c | 4 ++++ 1 file changed, 4 insertions(+)