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| author | Al Viro | 2014-12-09 02:39:29 +0100 |
|---|---|---|
| committer | Al Viro | 2014-12-09 02:39:29 +0100 |
| commit | ba00410b8131b23edfb0e09f8b6dd26c8eb621fb (patch) | |
| tree | c08504e4d2fa51ac91cef544f336d0169806c49f /drivers/staging/comedi | |
| parent | Merge tag 'trace-seq-file-cleanup' of git://git.kernel.org/pub/scm/linux/kern... (diff) | |
| parent | copy_from_iter_nocache() (diff) | |
| download | kernel-qcow2-linux-ba00410b8131b23edfb0e09f8b6dd26c8eb621fb.tar.gz kernel-qcow2-linux-ba00410b8131b23edfb0e09f8b6dd26c8eb621fb.tar.xz kernel-qcow2-linux-ba00410b8131b23edfb0e09f8b6dd26c8eb621fb.zip | |
Merge branch 'iov_iter' into for-next
Diffstat (limited to 'drivers/staging/comedi')
| -rw-r--r-- | drivers/staging/comedi/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 26 |
2 files changed, 15 insertions, 13 deletions
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index a8bc2b567789..152f4c12ea43 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -426,6 +426,7 @@ config COMEDI_AIO_IIRO_16 config COMEDI_II_PCI20KC tristate "Intelligent Instruments PCI-20001C carrier support" + depends on HAS_IOMEM ---help--- Enable support for Intelligent Instruments PCI-20001C carrier PCI-20001, PCI-20006 and PCI-20341 @@ -667,7 +668,6 @@ config COMEDI_ADDI_APCI_2200 config COMEDI_ADDI_APCI_3120 tristate "ADDI-DATA APCI_3120/3001 support" depends on HAS_DMA - depends on VIRT_TO_BUS ---help--- Enable support for ADDI-DATA APCI_3120/3001 cards diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 495969f46e76..9c32f0276009 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1462,10 +1462,7 @@ static int __comedi_get_user_chanlist(struct comedi_device *dev, unsigned int *chanlist; int ret; - /* user_chanlist could be NULL for do_cmdtest ioctls */ - if (!user_chanlist) - return 0; - + cmd->chanlist = NULL; chanlist = memdup_user(user_chanlist, cmd->chanlist_len * sizeof(unsigned int)); if (IS_ERR(chanlist)) @@ -1609,13 +1606,18 @@ static int do_cmdtest_ioctl(struct comedi_device *dev, s = &dev->subdevices[cmd.subdev]; - /* load channel/gain list */ - ret = __comedi_get_user_chanlist(dev, s, user_chanlist, &cmd); - if (ret) - return ret; + /* user_chanlist can be NULL for COMEDI_CMDTEST ioctl */ + if (user_chanlist) { + /* load channel/gain list */ + ret = __comedi_get_user_chanlist(dev, s, user_chanlist, &cmd); + if (ret) + return ret; + } ret = s->do_cmdtest(dev, s, &cmd); + kfree(cmd.chanlist); /* free kernel copy of user chanlist */ + /* restore chanlist pointer before copying back */ cmd.chanlist = (unsigned int __force *)user_chanlist; @@ -1642,7 +1644,7 @@ static int do_cmdtest_ioctl(struct comedi_device *dev, */ -static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, +static int do_lock_ioctl(struct comedi_device *dev, unsigned long arg, void *file) { int ret = 0; @@ -1679,7 +1681,7 @@ static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, This function isn't protected by the semaphore, since we already own the lock. */ -static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, +static int do_unlock_ioctl(struct comedi_device *dev, unsigned long arg, void *file) { struct comedi_subdevice *s; @@ -1714,7 +1716,7 @@ static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg, nothing */ -static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, +static int do_cancel_ioctl(struct comedi_device *dev, unsigned long arg, void *file) { struct comedi_subdevice *s; @@ -1751,7 +1753,7 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, nothing */ -static int do_poll_ioctl(struct comedi_device *dev, unsigned int arg, +static int do_poll_ioctl(struct comedi_device *dev, unsigned long arg, void *file) { struct comedi_subdevice *s; |