From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fengguang Wu Date: Wed, 26 Sep 2012 17:01:04 +0000 Subject: drivers/media/rc/iguanair.c:276 iguanair_receiver() error: doing dma on the stack ((null)) Message-Id: <20120926170104.GC25467@localhost> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kernel-janitors@vger.kernel.org Hi Sean, FYI, there are new smatch warnings show up in tree: git://git.infradead.org/users/kmpark/linux-samsung commit-list commit: 26ff63137c45886169ed102bddd6e90d6c27f00d [media] Add support for the IguanaWorks USB IR Transceiver drivers/media/rc/iguanair.c:211 iguanair_get_features() error: doing dma on the stack ((null)) drivers/media/rc/iguanair.c:230 iguanair_get_features() error: doing dma on the stack ((null)) drivers/media/rc/iguanair.c:249 iguanair_get_features() error: doing dma on the stack ((null)) + drivers/media/rc/iguanair.c:276 iguanair_receiver() error: doing dma on the stack ((null)) vim +276 drivers/media/rc/iguanair.c 260 261 if (len > 5 && ir->version[0] >= 4) 262 ir->cycle_overhead = response.data[1]; 263 264 out: 265 return rc; 266 } 267 268 static int iguanair_receiver(struct iguanair *ir, bool enable) 269 { 270 struct packet packet = { 0, DIR_OUT, enable ? 271 CMD_RECEIVER_ON : CMD_RECEIVER_OFF }; 272 int rc; 273 274 INIT_COMPLETION(ir->completion); 275 > 276 rc = iguanair_send(ir, &packet, sizeof(packet), NULL, NULL); 277 if (rc) 278 return rc; 279 280 wait_for_completion_timeout(&ir->completion, TIMEOUT); 281 282 return 0; 283 } 284 --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu, Yuanhan Liu Intel Corporation