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firewire: core: WARN on wrong usage of core transaction functions

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In the code path which creates request packets, clearly mark a switch
branch which must never be reached with a WARN.

In the code path which creates response packets, replace a BUG by a
friendlier to debug WARN.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2009-10-14 20:37:36 +02:00
parent cb7c96da36
commit 5b189bf363
1 changed files with 4 additions and 2 deletions
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6
drivers/firewire/core-transaction.c
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@ -218,6 +218,9 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
packet->header_length = 16;
packet->payload_length = 0;
break;
default:
WARN(1, KERN_ERR "wrong tcode %d", tcode);
}
common:
packet->speed = speed;
@ -595,8 +598,7 @@ void fw_fill_response(struct fw_packet *response, u32 *request_header,
break;
default:
BUG();
return;
WARN(1, KERN_ERR "wrong tcode %d", tcode);
}
response->payload_bus = 0;