[PATCH 39/50] media: usb: tm6000: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:11:50
Also in:
alsa-devel, linux-input, linux-media, linux-wireless
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Mauro Carvalho Chehab <redacted> Cc: linux-media@vger.kernel.org Signed-off-by: Ming Lei <redacted> --- drivers/media/usb/tm6000/tm6000-video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c
index cc1aa14..8bb440f 100644
--- a/drivers/media/usb/tm6000/tm6000-video.c
+++ b/drivers/media/usb/tm6000/tm6000-video.c@@ -434,6 +434,7 @@ static void tm6000_irq_callback(struct urb *urb) struct tm6000_dmaqueue *dma_q = urb->context; struct tm6000_core *dev = container_of(dma_q, struct tm6000_core, vidq); int i; + unsigned long flags; switch (urb->status) { case 0:
@@ -450,9 +451,9 @@ static void tm6000_irq_callback(struct urb *urb) break; } - spin_lock(&dev->slock); + spin_lock_irqsave(&dev->slock, flags); tm6000_isoc_copy(urb); - spin_unlock(&dev->slock); + spin_unlock_irqrestore(&dev->slock, flags); /* Reset urb buffers */ for (i = 0; i < urb->number_of_packets; i++) {
--
1.7.9.5