[PATCH 1/3] usb: gadget: udc: Avoid tasklet passing a global

Kees Cook
2020-07-16T03:09:24Z

There's no reason for the tasklet callback to set an argument since it
always uses a global. Instead, use the global directly, in preparation
for converting the tasklet subsystem to modern callback conventions.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
drivers/usb/gadget/udc/snps_udc_core.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c
index 3fcded31405a..afdd28f332ce 100644
--- a/drivers/usb/gadget/udc/snps_udc_core.c
+++ b/drivers/usb/gadget/udc/snps_udc_core.c
@@ -96,9 +96,7 @@ static int stop_pollstall_timer;
static DECLARE_COMPLETION(on_pollstall_exit);

/* tasklet for usb disconnect */
-static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
- (unsigned long) &udc);
-
+static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect, 0);

/* endpoint names used for print */
static const char ep0_string[] = "ep0in";
@@ -1661,7 +1659,7 @@ static void usb_disconnect(struct udc *dev)
/* Tasklet for disconnect to be outside of interrupt context */
static void udc_tasklet_disconnect(unsigned long par)
{
- struct udc *dev = (struct udc *)(*((struct udc **) par));
+ struct udc *dev = udc;
u32 tmp;

DBG(dev, "Tasklet disconnect\n");
--
2.25.1