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Date: Wed, 15 Jul 2020 20:08:45 -0700
From: Kees Cook <keescook@...omium.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Kees Cook <keescook@...omium.org>,
Thomas Gleixner <tglx@...utronix.de>,
Allen Pais <allen.lkml@...il.com>,
Oscar Carter <oscar.carter@....com>,
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Subject: [PATCH 1/3] usb: gadget: udc: Avoid tasklet passing a global
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@...omium.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
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