[PATCH] sound/usb/usbaudio.c: remove unneeded casting

[John Daiker <daikerjohn@xxxxxxxxx>]

From: John Daiker <daikerjohn@xxxxxxxxx>

Went rummaging through usbaudio.c and found some castings that aren't 
needed as far as I can see.  Part of the KernelJanitors TODO list.

Signed-off-by: John Daiker <daikerjohn@xxxxxxxxx>

--- linux-2.6.orig/sound/usb/usbaudio.c    2006-12-21 13:19:19.000000000 
-0800
+++ linux-2.6/sound/usb/usbaudio.c    2006-12-21 13:23:06.000000000 -0800
@@ -253,7 +253,7 @@
                     struct urb *urb)
 {
     unsigned char *cp = urb->transfer_buffer;
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     urb->dev = ctx->subs->dev; /* we need to set this at each time */
     urb->iso_frame_desc[0].length = 3;
@@ -275,7 +275,7 @@
                        struct urb *urb)
 {
     unsigned char *cp = urb->transfer_buffer;
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     urb->dev = ctx->subs->dev; /* we need to set this at each time */
     urb->iso_frame_desc[0].length = 4;
@@ -313,7 +313,7 @@
                    struct urb *urb)
 {
     int i, offs;
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     offs = 0;
     urb->dev = ctx->subs->dev; /* we need to set this at each time */
@@ -402,7 +402,7 @@
                      struct snd_pcm_runtime *runtime,
                      struct urb *urb)
 {
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     urb->dev = ctx->subs->dev; /* we need to set this at each time */
     urb->iso_frame_desc[0].length = 3;
@@ -420,7 +420,7 @@
                     struct snd_pcm_runtime *runtime,
                     struct urb *urb)
 {
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     urb->dev = ctx->subs->dev; /* we need to set this at each time */
     urb->iso_frame_desc[0].length = 4;
@@ -537,7 +537,7 @@
     unsigned int counts;
     unsigned long flags;
     int period_elapsed = 0;
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
 
     stride = runtime->frame_bits >> 3;
 
@@ -655,7 +655,7 @@
  */
 static void snd_complete_urb(struct urb *urb)
 {
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
     struct snd_usb_substream *subs = ctx->subs;
     struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
     int err = 0;
@@ -678,7 +678,7 @@
  */
 static void snd_complete_sync_urb(struct urb *urb)
 {
-    struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context;
+    struct snd_urb_ctx *ctx = urb->context;
     struct snd_usb_substream *subs = ctx->subs;
     struct snd_pcm_substream *substream = ctx->subs->pcm_substream;
     int err = 0;
@@ -1408,7 +1408,7 @@
 static int snd_usb_hw_params(struct snd_pcm_substream *substream,
                  struct snd_pcm_hw_params *hw_params)
 {
-    struct snd_usb_substream *subs = (struct snd_usb_substream 
*)substream->runtime->private_data;
+    struct snd_usb_substream *subs = substream->runtime->private_data;
     struct audioformat *fmt;
     unsigned int channels, rate, format;
     int ret, changed;
@@ -1464,7 +1464,7 @@
  */
 static int snd_usb_hw_free(struct snd_pcm_substream *substream)
 {
-    struct snd_usb_substream *subs = (struct snd_usb_substream 
*)substream->runtime->private_data;
+    struct snd_usb_substream *subs = substream->runtime->private_data;
 
     subs->cur_audiofmt = NULL;
     subs->cur_rate = 0;


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