diff options
| author | Kees Cook <keescook@chromium.org> | 2017-10-17 02:39:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-17 13:14:44 +0300 |
| commit | 29bce57723351f63d593959be8fb9c97d7bc3a45 (patch) | |
| tree | 6bf3e7992bd523c904235cdcc2eff86379739fc9 /drivers/usb/gadget | |
| parent | 66a4550308b8391fecd46c7e733cbccb3e01ee96 (diff) | |
| download | linux-29bce57723351f63d593959be8fb9c97d7bc3a45.tar.xz | |
usb/gadget/snps_udc_core: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
If the probe fails, udc_remove() will not be called, so there is no
reason to make del_timer_sync() calls conditional. As a result, use of
the .data field can be dropped, in support of making removing this field
entirely from struct timer_list.
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Raviteja Garimella <raviteja.garimella@broadcom.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/udc/snps_udc_core.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c index 47df99dbaef4..2f5e788dd978 100644 --- a/drivers/usb/gadget/udc/snps_udc_core.c +++ b/drivers/usb/gadget/udc/snps_udc_core.c @@ -1733,7 +1733,7 @@ static void udc_soft_reset(struct udc *dev) } /* RDE timer callback to set RDE bit */ -static void udc_timer_function(unsigned long v) +static void udc_timer_function(struct timer_list *unused) { u32 tmp; @@ -1813,7 +1813,7 @@ static void udc_handle_halt_state(struct udc_ep *ep) } /* Stall timer callback to poll S bit and set it again after */ -static void udc_pollstall_timer_function(unsigned long v) +static void udc_pollstall_timer_function(struct timer_list *unused) { struct udc_ep *ep; int halted = 0; @@ -3067,14 +3067,12 @@ void udc_remove(struct udc *dev) stop_timer++; if (timer_pending(&udc_timer)) wait_for_completion(&on_exit); - if (udc_timer.data) - del_timer_sync(&udc_timer); + del_timer_sync(&udc_timer); /* remove pollstall timer */ stop_pollstall_timer++; if (timer_pending(&udc_pollstall_timer)) wait_for_completion(&on_pollstall_exit); - if (udc_pollstall_timer.data) - del_timer_sync(&udc_pollstall_timer); + del_timer_sync(&udc_pollstall_timer); udc = NULL; } EXPORT_SYMBOL_GPL(udc_remove); @@ -3164,10 +3162,6 @@ int udc_probe(struct udc *dev) u32 reg; int retval; - /* mark timer as not initialized */ - udc_timer.data = 0; - udc_pollstall_timer.data = 0; - /* device struct setup */ dev->gadget.ops = &udc_ops; @@ -3207,9 +3201,8 @@ int udc_probe(struct udc *dev) goto finished; /* timer init */ - setup_timer(&udc_timer, udc_timer_function, 1); - /* timer pollstall init */ - setup_timer(&udc_pollstall_timer, udc_pollstall_timer_function, 1); + timer_setup(&udc_timer, udc_timer_function, 0); + timer_setup(&udc_pollstall_timer, udc_pollstall_timer_function, 0); /* set SD */ reg = readl(&dev->regs->ctl); |