Testing for regressions in Media Controller API register, ioctl, syscall, and unregister paths. There have a few problems that result in user-after free on media_device, media_devnode, and cdev pointers when the driver is unbound while ioctl is in progress. Test Procedure: Run bin/unbind loop while ioctls are in progress. Run rmmod and modprobe. Disconnect the device. Setup: Build media_device_test cd tools/testing/selftests/media_tests make Regressions test for cdev user-after free error on /dev/mediaX when driver is unbound: Start media_device_test to regression test media devnode dynamic alloc and cdev user-after-free fixes. This opens media dev files and sits in a loop running media ioctl MEDIA_IOC_DEVICE_INFO command once every 10 seconds. The idea is when device file goes away, media devnode and cdev should stick around until this test exits. The test for a random number of iterations or until user kills it with a sleep 10 in between the ioctl calls. sudo ./media_device_test -d /dev/mediaX Regression test for media_devnode unregister race with ioctl_syscall: Start 6 open_loop_test.sh tests with different /dev/mediaX files. When device file goes away after unbind, device file name changes. Start the test with possible device names. If we start with /dev/media0 for example, after unbind, /dev/media1 or /dev/media2 could get created. The idea is keep ioctls going while bind/unbind runs. Copy bind_unbind_sample.txt and make changes to specify the driver name and number to run bind and unbind. Start the bind_unbind.sh Run dmesg looking for any user-after free errors or mutex lock errors. '>refslogtreecommitdiff
path: root/net/bluetooth/Kconfig
diff options
context:
space:
mode:
authorBhumika Goyal <bhumirks@gmail.com>2017-01-25 00:54:07 +0530
committerDan Williams <dan.j.williams@intel.com>2017-01-31 18:16:30 -0800
commit970d14e3989160ee9e97c7d75ecbc893fd29dab9 (patch)
tree4a731cac4efedb17f86a912ec56c151d26792abe /net/bluetooth/Kconfig
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
nvdimm: constify device_type structures
Declare device_type structure as const as it is only stored in the type field of a device structure. This field is of type const, so add const to declaration of device_type structure. File size before: text data bss dec hex filename 19278 3199 16 22493 57dd nvdimm/namespace_devs.o File size after: text data bss dec hex filename 19929 3160 16 23105 5a41 nvdimm/namespace_devs.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'net/bluetooth/Kconfig')