From: Ming Lei <ming.lei@canonical.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, Oliver Neukum <oliver@neukum.org>,
Alan Stern <stern@rowland.harvard.edu>,
linux-input@vger.kernel.org, linux-bluetooth@vger.kernel.org,
netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
linux-media@vger.kernel.org, alsa-devel@alsa-project.org,
Ming Lei <ming.lei@canonical.com>,
Mauro Carvalho Chehab <mchehab@redhat.com>
Subject: [PATCH 42/50] media: usb: tlg2300: spin_lock in complete() cleanup
Date: Thu, 11 Jul 2013 17:06:05 +0800 [thread overview]
Message-ID: <1373533573-12272-43-git-send-email-ming.lei@canonical.com> (raw)
In-Reply-To: <1373533573-12272-1-git-send-email-ming.lei@canonical.com>
Complete() will be run with interrupt enabled, so disable local
interrupt before holding a global lock which is held without
irqsave.
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@canonical.com>
---
drivers/media/usb/tlg2300/pd-alsa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/usb/tlg2300/pd-alsa.c b/drivers/media/usb/tlg2300/pd-alsa.c
index 3f3e141..cbccc96 100644
--- a/drivers/media/usb/tlg2300/pd-alsa.c
+++ b/drivers/media/usb/tlg2300/pd-alsa.c
@@ -141,6 +141,7 @@ static inline void handle_audio_data(struct urb *urb, int *period_elapsed)
int len = urb->actual_length / stride;
unsigned char *cp = urb->transfer_buffer;
unsigned int oldptr = pa->rcv_position;
+ unsigned long flags;
if (urb->actual_length == AUDIO_BUF_SIZE - 4)
len -= (AUDIO_TRAILER_SIZE / stride);
@@ -156,6 +157,7 @@ static inline void handle_audio_data(struct urb *urb, int *period_elapsed)
memcpy(runtime->dma_area + oldptr * stride, cp, len * stride);
/* update the statas */
+ local_irq_save(flags);
snd_pcm_stream_lock(pa->capture_pcm_substream);
pa->rcv_position += len;
if (pa->rcv_position >= runtime->buffer_size)
@@ -167,6 +169,7 @@ static inline void handle_audio_data(struct urb *urb, int *period_elapsed)
*period_elapsed = 1;
}
snd_pcm_stream_unlock(pa->capture_pcm_substream);
+ local_irq_restore(flags);
}
static void complete_handler_audio(struct urb *urb)
--
1.7.9.5
next prev parent reply other threads:[~2013-07-11 9:12 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-11 9:05 [PATCH 00/50] USB: cleanup spin_lock in URB->complete() Ming Lei
2013-07-11 9:05 ` [PATCH 01/50] USB: devio: spin_lock in complete() cleanup Ming Lei
2013-07-11 9:05 ` [PATCH 02/50] USB: cdc-wdm: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 03/50] USB: usblp: " Ming Lei
2013-07-11 9:05 ` [PATCH 04/50] USB: adutux: " Ming Lei
2013-07-11 9:05 ` [PATCH 05/50] USB: misc: uss720: " Ming Lei
2013-07-11 12:15 ` Sergei Shtylyov
2013-07-11 12:15 ` Sergei Shtylyov
2013-07-11 9:05 ` [PATCH 06/50] USB: iowarrior: " Ming Lei
2013-07-11 9:05 ` [PATCH 07/50] USB: ldusb: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 08/50] USB: legousbtower: " Ming Lei
2013-07-11 12:18 ` Sergei Shtylyov
2013-07-11 12:18 ` Sergei Shtylyov
2013-07-11 12:36 ` Oliver Neukum
2013-07-11 13:47 ` Sergei Shtylyov
2013-07-11 12:42 ` Ming Lei
2013-07-11 12:42 ` Ming Lei
2013-07-11 9:05 ` [PATCH 09/50] USB: usbtest: " Ming Lei
2013-07-11 9:05 ` [PATCH 10/50] USB: serial: cyberjack: " Ming Lei
2013-07-11 9:05 ` [PATCH 11/50] USB: serial: digi_acceleportldusb: " Ming Lei
2013-07-11 9:05 ` [PATCH 12/50] USB: serial: io_edgeport: " Ming Lei
2013-07-11 9:05 ` [PATCH 13/50] USB: serial: io_ti: " Ming Lei
2013-07-11 9:05 ` [PATCH 14/50] USB: serial: mos7720: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 15/50] USB: serial: mos77840: " Ming Lei
2013-07-11 9:05 ` [PATCH 16/50] USB: serial: quatech2: " Ming Lei
2013-07-11 9:05 ` [PATCH 17/50] USB: serial: sierra: " Ming Lei
2013-07-11 13:02 ` Sergei Shtylyov
2013-07-11 9:05 ` [PATCH 18/50] USB: serial: symbolserial: " Ming Lei
2013-07-11 9:05 ` [PATCH 19/50] USB: serial: ti_usb_3410_5052: " Ming Lei
2013-07-11 9:05 ` [PATCH 20/50] USB: serial: usb_wwan: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 21/50] hid: usbhid: " Ming Lei
2013-07-11 9:05 ` [PATCH 22/50] BT: btusb: " Ming Lei
2013-07-11 9:05 ` [PATCH 23/50] BT: bfusb: read_lock " Ming Lei
2013-07-11 9:05 ` [PATCH 24/50] input: cm109: spin_lock " Ming Lei
2013-07-11 9:05 ` [PATCH 25/50] ISDN: hfcsusb: " Ming Lei
2013-07-11 9:05 ` [PATCH 26/50] USBNET: cdc-phonet: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 27/50] USBNET: hso: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 28/50] USBNET: kaweth: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 29/50] USBNET: rtl8150: " Ming Lei
2013-07-11 9:05 ` Ming Lei
2013-07-11 9:05 ` [PATCH 30/50] wireless: ath9k: " Ming Lei
2013-07-11 9:05 ` [PATCH 31/50] wireless: zd1211rw: " Ming Lei
2013-07-11 9:05 ` [PATCH 32/50] wireless: ath: carl9170: " Ming Lei
2013-07-11 9:05 ` [PATCH 33/50] wireless: libertas: " Ming Lei
2013-07-11 9:05 ` [PATCH 34/50] wireless: libertas_tf: " Ming Lei
2013-07-11 9:05 ` [PATCH 35/50] media: usb: cx231xx: " Ming Lei
2013-07-26 14:28 ` Hans Verkuil
2013-07-27 9:34 ` Ming Lei
2013-07-11 9:05 ` [PATCH 36/50] media: usb: em28xx: " Ming Lei
2013-07-11 12:42 ` Devin Heitmueller
2013-07-11 9:06 ` [PATCH 37/50] media: usb: sn9x102: " Ming Lei
2013-07-11 9:06 ` [PATCH 38/50] media: usb: tlg2300: " Ming Lei
2013-07-11 9:06 ` [PATCH 39/50] media: usb: tm6000: " Ming Lei
2013-07-11 9:06 ` [PATCH 40/50] media: dvb-core: " Ming Lei
2013-07-11 9:06 ` [PATCH 41/50] media: usb: em28xx: make sure irq disabled before acquiring lock Ming Lei
2013-07-11 9:06 ` Ming Lei [this message]
2013-07-11 13:13 ` [PATCH 42/50] media: usb: tlg2300: spin_lock in complete() cleanup Sergei Shtylyov
2013-07-11 9:06 ` [PATCH 43/50] sound: usb: midi: " Ming Lei
2013-07-11 9:06 ` [PATCH 44/50] sound: usb: caiaq: " Ming Lei
2013-07-11 13:12 ` Sergei Shtylyov
2013-07-11 14:06 ` Daniel Mack
2013-07-11 9:06 ` [PATCH 45/50] sound: usb: usx2y: " Ming Lei
2013-07-11 13:08 ` Sergei Shtylyov
2013-07-11 13:50 ` Takashi Iwai
2013-07-11 13:50 ` Takashi Iwai
2013-07-11 14:13 ` Ming Lei
2013-07-11 14:34 ` Takashi Iwai
2013-07-11 14:34 ` Takashi Iwai
2013-07-11 14:52 ` Ming Lei
2013-07-11 9:06 ` [PATCH 46/50] Sound: usb: ua101: " Ming Lei
2013-07-11 9:06 ` Ming Lei
2013-07-11 13:10 ` Sergei Shtylyov
2013-07-11 9:06 ` [PATCH 47/50] staging: btmtk_usb: " Ming Lei
2013-07-11 9:06 ` Ming Lei
2013-07-11 9:06 ` [PATCH 48/50] staging: bcm: " Ming Lei
2013-07-11 9:06 ` [PATCH 49/50] staging: ced1401: " Ming Lei
2013-07-11 9:06 ` [PATCH 50/50] staging: vt6656: " Ming Lei
2013-07-14 13:17 ` [PATCH 00/50] USB: cleanup spin_lock in URB->complete() Andy Walls
2013-07-14 14:33 ` Ming Lei
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