[PATCH v4 2/2] mailbox: arm_mhuv3: Add driver

[kernel test robot]

Hi Cristian,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on soc/for-next linus/master v6.9-rc4 next-20240415]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Cristian-Marussi/dt-bindings-mailbox-arm-mhuv3-Add-bindings/20240415-094106
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20240412192801.554464-3-cristian.marussi%40arm.com
patch subject: [PATCH v4 2/2] mailbox: arm_mhuv3: Add driver
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240415/202404152144.RtJxmEsQ-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240415/202404152144.RtJxmEsQ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404152144.RtJxmEsQ-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/mailbox/arm_mhuv3.c: In function 'mhuv3_mbx_comb_interrupt':
>> drivers/mailbox/arm_mhuv3.c:922:17: error: cleanup argument not a function
     922 |                 void *data __free(kfree) = NULL;
         |                 ^~~~


vim +922 drivers/mailbox/arm_mhuv3.c

   910	
   911	static irqreturn_t mhuv3_mbx_comb_interrupt(int irq, void *arg)
   912	{
   913		unsigned int i, found = 0;
   914		struct mhuv3 *mhu = arg;
   915		struct mbox_chan *chan;
   916		struct device *dev;
   917		int ret = IRQ_NONE;
   918	
   919		dev = mhu->mbox.dev;
   920		for (i = 0; i < NUM_EXT; i++) {
   921			struct mhuv3_mbox_chan_priv *priv;
 > 922			void *data __free(kfree) = NULL;
   923	
   924			if (!mhu->ext[i])
   925				continue;
   926	
   927			/* Process any extension which could be source of the IRQ */
   928			chan = mhu->ext[i]->chan_from_comb_irq_get(mhu);
   929			if (IS_ERR(chan))
   930				continue;
   931	
   932			found++;
   933			/* From here on we need to call rx_complete even on error */
   934			priv = chan->con_priv;
   935			if (!chan->cl) {
   936				dev_warn(dev, "RX Data on UNBOUND channel (%u)\n",
   937					 priv->ch_idx);
   938				goto rx_ack;
   939			}
   940	
   941			/* Read optional in-band LE data first. */
   942			if (priv->ops->read_data) {
   943				data = priv->ops->read_data(mhu, chan);
   944				if (IS_ERR(data)) {
   945					dev_err(dev,
   946						"Failed to read in-band data. err:%ld\n",
   947						PTR_ERR(no_free_ptr(data)));
   948					goto rx_ack;
   949				}
   950			}
   951	
   952			mbox_chan_received_data(chan, data);
   953			ret = IRQ_HANDLED;
   954	
   955			/*
   956			 * Acknowledge transfer after any possible optional
   957			 * out-of-band data has also been retrieved via
   958			 * mbox_chan_received_data().
   959			 */
   960	rx_ack:
   961			if (priv->ops->rx_complete)
   962				priv->ops->rx_complete(mhu, chan);
   963		}
   964	
   965		if (found == 0)
   966			dev_warn_once(dev, "Failed to find channel for the RX interrupt\n");
   967	
   968		return ret;
   969	}
   970	

-- 
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