Remove variable frame_size as its multiple usages are all independent of
each other and so can be returned separately.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.li...@gmail.com>
---
 drivers/staging/most/usb/usb.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c
index 360cb5b7a10b..751e82cf66c5 100644
--- a/drivers/staging/most/usb/usb.c
+++ b/drivers/staging/most/usb/usb.c
@@ -186,32 +186,28 @@ static inline int start_sync_ep(struct usb_device 
*usb_dev, u16 ep)
  */
 static unsigned int get_stream_frame_size(struct most_channel_config *cfg)
 {
-       unsigned int frame_size = 0;
        unsigned int sub_size = cfg->subbuffer_size;
 
        if (!sub_size) {
                pr_warn("Misconfig: Subbuffer size zero.\n");
-               return frame_size;
+               return 0;
        }
        switch (cfg->data_type) {
        case MOST_CH_ISOC:
-               frame_size = AV_PACKETS_PER_XACT * sub_size;
-               break;
+               return AV_PACKETS_PER_XACT * sub_size;
        case MOST_CH_SYNC:
                if (cfg->packets_per_xact == 0) {
                        pr_warn("Misconfig: Packets per XACT zero\n");
-                       frame_size = 0;
+                       return 0;
                } else if (cfg->packets_per_xact == 0xFF) {
-                       frame_size = (USB_MTU / sub_size) * sub_size;
+                       return (USB_MTU / sub_size) * sub_size;
                } else {
-                       frame_size = cfg->packets_per_xact * sub_size;
+                       return cfg->packets_per_xact * sub_size;
                }
-               break;
        default:
                pr_warn("Query frame size of non-streaming channel\n");
-               break;
+               return 0;
        }
-       return frame_size;
 }
 
 /**
-- 
2.19.1

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