This is an automatic generated email to let you know that the following patch were queued at the http://git.linuxtv.org/v4l-dvb.git tree:
Subject: V4L/DVB: pvrusb2: Fix USB parent device reference count Author: Mike Isely <[email protected]> Date: Sat May 15 00:23:46 2010 -0300 pvrusb2: Correctly reference count pointer to parent USB device when linked from sysfs interface. This is technically a pretty nasty problem, however as far as I know nobody had been getting burned by it (yet). Signed-off-by: Mike Isely <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/video/pvrusb2/pvrusb2-sysfs.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-) --- http://git.linuxtv.org/v4l-dvb.git?a=commitdiff;h=065d74d8c43841c2462289f81632dfd8c885a4ea diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c index 71f5056..bf47851 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c +++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c @@ -511,6 +511,7 @@ static void pvr2_sysfs_release(struct device *class_dev) static void class_dev_destroy(struct pvr2_sysfs *sfp) { + struct device *dev; if (!sfp->class_dev) return; #ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC pvr2_sysfs_tear_down_debugifc(sfp); @@ -542,6 +543,9 @@ static void class_dev_destroy(struct pvr2_sysfs *sfp) } pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev); dev_set_drvdata(sfp->class_dev, NULL); + dev = sfp->class_dev->parent; + sfp->class_dev->parent = NULL; + put_device(dev); device_unregister(sfp->class_dev); sfp->class_dev = NULL; } @@ -631,10 +635,11 @@ static void class_dev_create(struct pvr2_sysfs *sfp, pvr2_sysfs_trace("Creating class_dev id=%p",class_dev); class_dev->class = &class_ptr->class; + dev_set_name(class_dev, "%s", pvr2_hdw_get_device_identifier(sfp->channel.hdw)); - class_dev->parent = &usb_dev->dev; + class_dev->parent = get_device(&usb_dev->dev); sfp->class_dev = class_dev; dev_set_drvdata(class_dev, sfp); @@ -775,7 +780,8 @@ struct pvr2_sysfs_class *pvr2_sysfs_class_create(void) struct pvr2_sysfs_class *clp; clp = kzalloc(sizeof(*clp),GFP_KERNEL); if (!clp) return clp; - pvr2_sysfs_trace("Creating pvr2_sysfs_class id=%p",clp); + pvr2_sysfs_trace("Creating and registering pvr2_sysfs_class id=%p", + clp); clp->class.name = "pvrusb2"; clp->class.class_release = pvr2_sysfs_class_release; clp->class.dev_release = pvr2_sysfs_release; @@ -791,6 +797,7 @@ struct pvr2_sysfs_class *pvr2_sysfs_class_create(void) void pvr2_sysfs_class_destroy(struct pvr2_sysfs_class *clp) { + pvr2_sysfs_trace("Unregistering pvr2_sysfs_class id=%p", clp); class_unregister(&clp->class); } _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
