False positive. I tried to fix this before but my patch caused random
segfaults and I gave up. I should look again. Sorry.
regards,
dan carpenter
On Mon, Apr 06, 2015 at 12:17:38AM +0800, kbuild test robot wrote:
> TO: Mauro Carvalho Chehab <m.che...@samsung.com>
> CC: linux-me...@vger.kernel.org
>
> tree: git://linuxtv.org/media_tree.git master
> head: a5562f65b1371a0988b707c10c44fcc2bba56990
> commit: a0246e02f466482a34c8ad94bedbe4efa498662d [331/653] [media] dvbdev:
> add support for media controller
> :::::: branch date: 3 days ago
> :::::: commit date: 7 weeks ago
>
> drivers/media/dvb-core/dvbdev.c:270 dvb_register_device() error:
> __builtin_memcpy() 'template' too small (96 vs 104)
>
> git remote add linuxtv-media git://linuxtv.org/media_tree.git
> git remote update linuxtv-media
> git checkout a0246e02f466482a34c8ad94bedbe4efa498662d
> vim +/template +270 drivers/media/dvb-core/dvbdev.c
>
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 254
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 255 *pdvbdev = dvbdev = kmalloc(sizeof(struct dvb_device), GFP_KERNEL);
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 256
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 257 if (!dvbdev){
> 1e4baed3 drivers/media/dvb/dvb-core/dvbdev.c Ingo Molnar 2006-01-15
> 258 mutex_unlock(&dvbdev_register_lock);
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 259 return -ENOMEM;
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 260 }
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 261
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 262 dvbdevfops = kzalloc(sizeof(struct file_operations), GFP_KERNEL);
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 263
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 264 if (!dvbdevfops){
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 265 kfree (dvbdev);
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 266 mutex_unlock(&dvbdev_register_lock);
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 267 return -ENOMEM;
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 268 }
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 269
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> @270 memcpy(dvbdev, template, sizeof(struct dvb_device));
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 271 dvbdev->type = type;
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 272 dvbdev->id = id;
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 273 dvbdev->adapter = adap;
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 274 dvbdev->priv = priv;
> b6190102 drivers/media/dvb/dvb-core/dvbdev.c Marcel Siegert 2007-02-13
> 275 dvbdev->fops = dvbdevfops;
> ca5be9cd drivers/media/dvb/dvb-core/dvbdev.c Markus Rechberger 2007-04-14
> 276 init_waitqueue_head (&dvbdev->wait_queue);
> ^1da177e drivers/media/dvb/dvb-core/dvbdev.c Linus Torvalds 2005-04-16
> 277
> 784e29d2 drivers/media/dvb/dvb-core/dvbdev.c Jan Engelhardt 2009-01-11
> 278 memcpy(dvbdevfops, template->fops, sizeof(struct file_operations));
>
> :::::: The code at line 270 was first introduced by commit
> :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
>
> :::::: TO: Linus Torvalds <torva...@ppc970.osdl.org>
> :::::: CC: Linus Torvalds <torva...@ppc970.osdl.org>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> http://lists.01.org/mailman/listinfo/kbuild Intel Corporation
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