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staging: comedi: comedi_compat32.c: reformat other block comments

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Use the usual block comment style.  Combine some consecutive comments
into block comments.  Also remove part of a comment referring to
`ptr_to_compat()` not being implemented until kernel version 2.6.11 as
it's irrelevant.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2015-01-27 18:16:54 +00:00 committed by Greg Kroah-Hartman
parent 0a87c0eb13
commit 79b09aac00
1 changed files with 24 additions and 12 deletions
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36
drivers/staging/comedi/comedi_compat32.c
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@ -27,11 +27,15 @@
#define COMEDI32_CHANINFO _IOR(CIO, 3, struct comedi32_chaninfo_struct)
#define COMEDI32_RANGEINFO _IOR(CIO, 8, struct comedi32_rangeinfo_struct)
/* N.B. COMEDI32_CMD and COMEDI_CMD ought to use _IOWR, not _IOR.
* It's too late to change it now, but it only affects the command number. */
/*
* N.B. COMEDI32_CMD and COMEDI_CMD ought to use _IOWR, not _IOR.
* It's too late to change it now, but it only affects the command number.
*/
#define COMEDI32_CMD _IOR(CIO, 9, struct comedi32_cmd_struct)
/* N.B. COMEDI32_CMDTEST and COMEDI_CMDTEST ought to use _IOWR, not _IOR.
* It's too late to change it now, but it only affects the command number. */
/*
* N.B. COMEDI32_CMDTEST and COMEDI_CMDTEST ought to use _IOWR, not _IOR.
* It's too late to change it now, but it only affects the command number.
*/
#define COMEDI32_CMDTEST _IOR(CIO, 10, struct comedi32_cmd_struct)
#define COMEDI32_INSNLIST _IOR(CIO, 11, struct comedi32_insnlist_struct)
#define COMEDI32_INSN _IOR(CIO, 12, struct comedi32_insn_struct)
@ -215,10 +219,12 @@ static int put_compat_cmd(struct comedi32_cmd_struct __user *cmd32,
int err;
unsigned int temp;
/* Copy back most of cmd structure. */
/* Assume the pointer values are already valid. */
/* (Could use ptr_to_compat() to set them, but that wasn't implemented
* until kernel version 2.6.11.) */
/*
* Copy back most of cmd structure.
*
* Assume the pointer values are already valid.
* (Could use ptr_to_compat() to set them.)
*/
if (!access_ok(VERIFY_READ, cmd, sizeof(*cmd)) ||
!access_ok(VERIFY_WRITE, cmd32, sizeof(*cmd32)))
return -EFAULT;
@ -403,8 +409,11 @@ static int compat_insn(struct file *file, unsigned long arg)
return translated_ioctl(file, COMEDI_INSN, (unsigned long)insn);
}
/* Process untranslated ioctl. */
/* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */
/*
* Process untranslated ioctl.
*
* Returns -ENOIOCTLCMD for unrecognised ioctl codes.
*/
static inline int raw_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
@ -454,8 +463,11 @@ static inline int raw_ioctl(struct file *file, unsigned int cmd,
return rc;
}
/* compat_ioctl file operation. */
/* Returns -ENOIOCTLCMD for unrecognised ioctl codes. */
/*
* compat_ioctl file operation.
*
* Returns -ENOIOCTLCMD for unrecognised ioctl codes.
*/
long comedi_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
return raw_ioctl(file, cmd, arg);