include/linux: remove repeated words

Drop the doubled word "for" in a comment. {firewire-cdev.h}
Drop the doubled word "in" in a comment. {input.h}
Drop the doubled word "a" in a comment. {mdev.h}
Drop the doubled word "the" in a comment. {ptrace.h}

Link: https://lkml.kernel.org/r/20210126232444.22861-1-rdunlap@infradead.orgSigned-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/mdev.h

@@ -42,7 +42,7 @@ struct device *mdev_get_iommu_device(struct device *dev);
  *			@mdev: mdev_device structure on of mediated device
  *			      that is being created
  *			Returns integer: success (0) or error (< 0)
- * @remove:		Called to free resources in parent device's driver for a
+ * @remove:		Called to free resources in parent device's driver for
  *			a mediated device. It is mandatory to provide 'remove'
  *			ops.
  *			@mdev: mdev_device device structure which is being

include/linux/ptrace.h

@@ -171,7 +171,7 @@ static inline void ptrace_event(int event, unsigned long message)
  *
  * Check whether @event is enabled and, if so, report @event and @pid
  * to the ptrace parent.  @pid is reported as the pid_t seen from the
- * the ptrace parent's pid namespace.
+ * ptrace parent's pid namespace.
  *
  * Called without locks.
  */

include/uapi/linux/firewire-cdev.h

@@ -844,7 +844,7 @@ struct fw_cdev_queue_iso {
  * struct fw_cdev_start_iso - Start an isochronous transmission or reception
  * @cycle:	Cycle in which to start I/O.  If @cycle is greater than or
  *		equal to 0, the I/O will start on that cycle.
- * @sync:	Determines the value to wait for for receive packets that have
+ * @sync:	Determines the value to wait for receive packets that have
  *		the %FW_CDEV_ISO_SYNC bit set
  * @tags:	Tag filter bit mask.  Only valid for isochronous reception.
  *		Determines the tag values for which packets will be accepted.

include/uapi/linux/input.h

@@ -84,7 +84,7 @@ struct input_id {
  * in units per radian.
  * When INPUT_PROP_ACCELEROMETER is set the resolution changes.
  * The main axes (ABS_X, ABS_Y, ABS_Z) are then reported in
- * in units per g (units/g) and in units per degree per second
+ * units per g (units/g) and in units per degree per second
  * (units/deg/s) for rotational axes (ABS_RX, ABS_RY, ABS_RZ).
  */
 struct input_absinfo {