Hi Bjorn, [auto build test WARNING on next-20170505] [also build test WARNING on v4.11] [cannot apply to v4.9-rc8 v4.9-rc7 v4.9-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Bjorn-Andersson/rpmsg-Make-rpmsg_create_ept-propagate-error/20170509-135640 config: arm-multi_v7_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All warnings (new ones prefixed by >>): drivers/rpmsg/virtio_rpmsg_bus.c:227:31: sparse: incorrect type in return expression (different base types) drivers/rpmsg/virtio_rpmsg_bus.c:227:31: expected struct rpmsg_endpoint * drivers/rpmsg/virtio_rpmsg_bus.c:227:31: got long drivers/rpmsg/virtio_rpmsg_bus.c: In function '__rpmsg_create_ept': >> drivers/rpmsg/virtio_rpmsg_bus.c:227:18: warning: passing argument 1 of 'PTR_ERR' makes pointer from integer without a cast [-Wint-conversion] return PTR_ERR(-ENOMEM); ^ In file included from include/linux/rwsem.h:17:0, from include/linux/notifier.h:14, from include/linux/memory_hotplug.h:6, from include/linux/mmzone.h:757, from include/linux/gfp.h:5, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers/rpmsg/virtio_rpmsg_bus.c:23: include/linux/err.h:28:33: note: expected 'const void *' but argument is of type 'int' static inline long __must_check PTR_ERR(__force const void *ptr) ^~~~~~~ >> drivers/rpmsg/virtio_rpmsg_bus.c:227:10: warning: return makes pointer from integer without a cast [-Wint-conversion] return PTR_ERR(-ENOMEM); ^~~~~~~~~~~~~~~~ vim +/PTR_ERR +227 drivers/rpmsg/virtio_rpmsg_bus.c 211 */ 212 kfree(ept); 213 } 214 215 /* for more info, see below documentation of rpmsg_create_ept() */ 216 static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, 217 struct rpmsg_device *rpdev, 218 rpmsg_rx_cb_t cb, 219 void *priv, u32 addr) 220 { 221 int id_min, id_max, id; 222 struct rpmsg_endpoint *ept; 223 struct device *dev = rpdev ? &rpdev->dev : &vrp->vdev->dev; 224 225 ept = kzalloc(sizeof(*ept), GFP_KERNEL); 226 if (!ept) > 227 return PTR_ERR(-ENOMEM); 228 229 kref_init(&ept->refcount); 230 mutex_init(&ept->cb_lock); 231 232 ept->rpdev = rpdev; 233 ept->cb = cb; 234 ept->priv = priv; 235 ept->ops = &virtio_endpoint_ops; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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