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* re: mfd: add driver for sequencer serial port
@ 2013-11-06 16:11 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2013-11-06 16:11 UTC (permalink / raw)
  To: kernel-janitors

Hello Cyril Chemparathy,

This is a semi-automatic email about new static checker warnings.

The patch 03df0f629483: "mfd: add driver for sequencer serial port" 
from Jan 18, 2011, leads to the following Smatch complaint:

drivers/mfd/ti-ssp.c:407 ti_ssp_probe()
	 error: we previously assumed 'pdata' could be null (see line 400)

drivers/mfd/ti-ssp.c
   399		sysclk = clk_get_rate(ssp->clk);
   400		if (pdata && pdata->out_clock)
                    ^^^^^
Check.

   401			prediv = (sysclk / pdata->out_clock) - 1;
   402		prediv = clamp(prediv, 0, 0xff);
   403		ssp_rmw(ssp, REG_PREDIV, 0xff, prediv);
   404	
   405		memset(cells, 0, sizeof(cells));
   406		for (id = 0; id < 2; id++) {
   407			const struct ti_ssp_dev_data *data = &pdata->dev_data[id];
                                                              ^^^^^^^^^^^^^^^^^^^
Unchecked dereference.

   408	
   409			cells[id].id		= id;

regards,
dan carpenter

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