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staging: unisys: visornic: change return statements

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Changes return statements in visornic_rx() to use literals instead of a
variable. Also changes function description to reflect the correct return
type.

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Binder 2016-05-13 23:17:22 -04:00 committed by Greg Kroah-Hartman
parent 35b2141556
commit 73e81350ad
1 changed files with 7 additions and 9 deletions
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16
drivers/staging/unisys/visornic/visornic_main.c
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@ -1137,7 +1137,7 @@ repost_return(struct uiscmdrsp *cmdrsp, struct visornic_devdata *devdata,
*
* Got a receive packet back from the IO Part, handle it and send
* it up the stack.
* Returns void
* Returns 1 iff an skb was receieved, otherwise 0
*/
static int
visornic_rx(struct uiscmdrsp *cmdrsp)
@ -1148,7 +1148,6 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
int cc, currsize, off;
struct ethhdr *eth;
unsigned long flags;
int rx_count = 0;
/* post new rcv buf to the other end using the cmdrsp we have at hand
* post it without holding lock - but we'll use the signal lock to
@ -1180,7 +1179,7 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
*/
spin_unlock_irqrestore(&devdata->priv_lock, flags);
repost_return(cmdrsp, devdata, skb, netdev);
return rx_count;
return 0;
}
spin_unlock_irqrestore(&devdata->priv_lock, flags);
@ -1199,7 +1198,7 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
if (repost_return(cmdrsp, devdata, skb, netdev) < 0)
dev_err(&devdata->netdev->dev,
"repost_return failed");
return rx_count;
return 0;
}
/* length rcvd is greater than firstfrag in this skb rcv buf */
skb->tail += RCVPOST_BUF_SIZE; /* amount in skb->data */
@ -1215,7 +1214,7 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
if (repost_return(cmdrsp, devdata, skb, netdev) < 0)
dev_err(&devdata->netdev->dev,
"repost_return failed");
return rx_count;
return 0;
}
skb->tail += skb->len;
skb->data_len = 0; /* nothing rcvd in frag_list */
@ -1234,7 +1233,7 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
if (cmdrsp->net.rcv.rcvbuf[0] != skb) {
if (repost_return(cmdrsp, devdata, skb, netdev) < 0)
dev_err(&devdata->netdev->dev, "repost_return failed");
return rx_count;
return 0;
}
if (cmdrsp->net.rcv.numrcvbufs > 1) {
@ -1316,10 +1315,9 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
/* drop packet - don't forward it up to OS */
devdata->n_rcv_packets_not_accepted++;
repost_return(cmdrsp, devdata, skb, netdev);
return rx_count;
return 0;
} while (0);
rx_count++;
netif_receive_skb(skb);
/* netif_rx returns various values, but "in practice most drivers
* ignore the return value
@ -1332,7 +1330,7 @@ visornic_rx(struct uiscmdrsp *cmdrsp)
* new rcv buffer.
*/
repost_return(cmdrsp, devdata, skb, netdev);
return rx_count;
return 1;
}
/**