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| author |   Michael S. Tsirkin <mst@redhat.com> | 2016-04-03 15:22:08 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-04-07 15:16:39 +0300 |
| commit | e8aabc64d7f5c8702e420c6fa478368f60718ae4 (patch) | |
| tree | eae09e5ae7f60e8e2e375b6792639da64f71720f /drivers/firmware | |
| parent | Linux 4.6-rc2 (diff) | |
| download | linux-dev-e8aabc64d7f5c8702e420c6fa478368f60718ae4.tar.xz linux-dev-e8aabc64d7f5c8702e420c6fa478368f60718ae4.zip | |
qemu_fw_cfg: don't leak kobj on init error
If platform_driver_register fails, we should
cleanup fw_cfg_top_ko before exiting.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Gabriel Somlo <somlo@cmu.edu>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/qemu_fw_cfg.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index fedbff55a7f3..e4c471413d46 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -727,12 +727,18 @@ device_param_cb(mmio, &fw_cfg_cmdline_param_ops, NULL, S_IRUSR); static int __init fw_cfg_sysfs_init(void) { + int ret; + /* create /sys/firmware/qemu_fw_cfg/ top level directory */ fw_cfg_top_ko = kobject_create_and_add("qemu_fw_cfg", firmware_kobj); if (!fw_cfg_top_ko) return -ENOMEM; - return platform_driver_register(&fw_cfg_sysfs_driver); + ret = platform_driver_register(&fw_cfg_sysfs_driver); + if (ret) + fw_cfg_kobj_cleanup(fw_cfg_top_ko); + + return ret; } static void __exit fw_cfg_sysfs_exit(void) |