diff options
| author | Tim Sell <Timothy.Sell@unisys.com> | 2016-04-13 15:56:36 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-29 05:09:37 (GMT) |
| commit | 6a957193ba83e5487705f63011307d202fff69f8 (patch) | |
| tree | 8cc3eeb865673b9379d47cd24116b892e0c70bb6 /drivers/staging/unisys | |
| parent | 853adce6fd9a3caec583e115cd9f5def6f67daf7 (diff) | |
| download | linux-6a957193ba83e5487705f63011307d202fff69f8.tar.xz | |
staging: unisys: visornic: convert BUG_ON to dev_err() message
The caller of visor_copy_fragsinfo_from_skb() is prepared to log a
dev_err() message if it fails (by returning a negative value), so we now
just fail in the one occasion where visor_copy_fragsinfo_from_skb() was
doing a BUG_ON.
There was also a problem before where visor_copy_fragsinfo_from_skb() was
returning a negative to indicate error, yet it was declared to return an
unsigned value! So obviously that needed correcting too.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/unisys')
| -rw-r--r-- | drivers/staging/unisys/visornic/visornic_main.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index 0ec952a..de983d2 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -209,7 +209,7 @@ static void poll_for_irq(unsigned long v); * Return value indicates number of entries filled in frags * Negative values indicate an error. */ -static unsigned int +static int visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, unsigned int frags_max, struct phys_info frags[]) @@ -269,11 +269,9 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, * zero if the frags array is out of room * That should never happen because we * fail above, if count+numfrags > frags_max. - * Given that theres no recovery mechanism from putting - * half a packet in the I/O channel, panic here as this - * should never happen */ - BUG_ON(!count); + if (!count) + return -EINVAL; } } if (skb_shinfo(skb)->frag_list) { |