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cciss: call BUG() earlier

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I moved the range check after the increment.  The current code would
write past the end of the array once before calling BUG().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Dan Carpenter 2010-06-01 12:17:48 +02:00 committed by Jens Axboe
parent 099c5c310e
commit 713b686494
1 changed files with 1 additions and 1 deletions
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2
drivers/block/cciss_scsi.c
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@ -188,11 +188,11 @@ scsi_cmd_free(ctlr_info_t *h, CommandList_struct *cmd)
sa = h->scsi_ctlr;
stk = &sa->cmd_stack;
stk->top++;
if (stk->top >= CMD_STACK_SIZE) {
printk("cciss: scsi_cmd_free called too many times.\n");
BUG();
}
stk->top++;
stk->elem[stk->top] = (struct cciss_scsi_cmd_stack_elem_t *) cmd;
}