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| author | Su Hui <suhui@nfschina.com> | 2024-10-11 12:40:02 +0200 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2024-10-11 17:52:42 +0200 |
| commit | 39b13dce1a91cdfc3bec9238f9e89094551bd428 (patch) | |
| tree | f484bbc7f7fa872dec38d96bef0adddf0d93088c /drivers/firmware/arm_scmi | |
| parent | Linux 6.12-rc1 (diff) | |
| download | linux-39b13dce1a91cdfc3bec9238f9e89094551bd428.tar.xz linux-39b13dce1a91cdfc3bec9238f9e89094551bd428.zip | |
firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()
Clang static checker(scan-build) throws below warning：
| drivers/firmware/arm_scmi/driver.c:line 2915, column 2
| Attempt to free released memory.
When devm_add_action_or_reset() fails, scmi_debugfs_common_cleanup()
will run twice which causes double free of 'dbg->name'.
Remove the redundant scmi_debugfs_common_cleanup() to fix this problem.
Fixes: c3d4aed763ce ("firmware: arm_scmi: Populate a common SCMI debugfs root")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Message-Id: <20241011104001.1546476-1-suhui@nfschina.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scmi')
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 88c5c4ff4bb6..a477b5ade38d 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2976,10 +2976,8 @@ static struct scmi_debug_info *scmi_debugfs_common_setup(struct scmi_info *info) dbg->top_dentry = top_dentry; if (devm_add_action_or_reset(info->dev, - scmi_debugfs_common_cleanup, dbg)) { - scmi_debugfs_common_cleanup(dbg); + scmi_debugfs_common_cleanup, dbg)) return NULL; - } return dbg; } |