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| author | Haotian Zhang <vulab@iscas.ac.cn> | 2025-09-29 14:12:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-11 17:19:09 +0300 |
| commit | cba0160efb2ef47ead026d2cd22b735b2b727eec (patch) | |
| tree | 72cfabb53fbe14dfdffe6fbaff4ffc66a10ea6af /drivers/media | |
| parent | d0078e145b1be01662fc8dc76b7171001585e46f (diff) | |
| download | linux-cba0160efb2ef47ead026d2cd22b735b2b727eec.tar.xz | |
media: cec: Fix debugfs leak on bus_register() failure
commit c43bcd2b2aa3c2ca9d2433c3990ecbc2c47d10eb upstream.
In cec_devnode_init(), the debugfs directory created with
debugfs_create_dir() is not removed if bus_register() fails.
This leaves a stale "cec" entry in debugfs and prevents
proper module reloading.
Fix this by removing the debugfs directory in the error path.
Fixes: a56960e8b406 ("[media] cec: add HDMI CEC framework (core)")
Cc: stable@vger.kernel.org
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/cec/core/cec-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/cec/core/cec-core.c b/drivers/media/cec/core/cec-core.c index 7e153c5cad04..b4dcc352a3c6 100644 --- a/drivers/media/cec/core/cec-core.c +++ b/drivers/media/cec/core/cec-core.c @@ -449,6 +449,7 @@ static int __init cec_devnode_init(void) ret = bus_register(&cec_bus_type); if (ret < 0) { + debugfs_remove_recursive(top_cec_dir); unregister_chrdev_region(cec_dev_t, CEC_NUM_DEVICES); pr_warn("cec: bus_register failed\n"); return -EIO; |