Fix misspellings of "system", "controller", "interrupt" and "necessary".

Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

3 files changed, 4 insertions, 4 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 1fa57947bca0..b463cef2de63 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -565,7 +565,7 @@ typedef struct os_dat_s {
  *      The following parameter is used to select the point in the internal
  *      tape fifo in which we will start to refill the buffer. Decreasing
  *      the following parameter will improve the system's latency and
- *      interactive response, while using a high value might improve sytem
+ *      interactive response, while using a high value might improve system
  *      throughput.
  */
 #define IDETAPE_FIFO_THRESHOLD          2
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index ec45b7247209..08e820e89ae2 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -95,7 +95,7 @@ struct it821x_dev
 
 /*
  *      We allow users to force the card into non raid mode without
- *      flashing the alternative BIOS. This is also neccessary right now
+ *      flashing the alternative BIOS. This is also necessary right now
  *      for embedded platforms that cannot run a PC BIOS but are using this
  *      device.
  */
@@ -564,7 +564,7 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif)
 
         /*
          *      Not in the docs but according to the reference driver
-         *      this is neccessary.
+         *      this is necessary.
          */
 
         pci_read_config_byte(hwif->pci_dev, 0x08, &conf);
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 689786df1ede..1353afb10a4d 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -26,7 +26,7 @@
  *
  *      If you have strange problems with nVidia chipset systems please
  *      see the SI support documentation and update your system BIOS
- *      if neccessary
+ *      if necessary
  *
  *  The Dell DRAC4 has some interesting features including effectively hot
  *  unplugging/replugging the virtual CD interface when the DRAC is reset.