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Release the normalized fullpath buffer before dfs_statfs() returns in DFSv2.
Root cause
dfs_statfs() allocates fullpath with dfs_normalize_path(NULL, path), uses it to find the mount point, and then returns without freeing the temporary path buffer. Other DFSv2 functions that normalize paths free the temporary path before returning.
Scope
The fix stays in dfs_statfs(), which owns the temporary path allocation. It does not change filesystem statfs callbacks or mount lookup behavior.
gh search prs 'dfs_statfs fullpath rt_free' --repo RT-Thread/rt-thread --state open --limit 20 --json number,title,author,url,isDraft returned no duplicate open PRs.
Confirmed bsp/qemu-vexpress-a9 enables DFSv2, but local python -m SCons -n stops because the configured toolchain path /usr/bin is not available on this Windows machine and no local gcc is installed.
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lgtm
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What changed
Release the normalized
fullpathbuffer beforedfs_statfs()returns in DFSv2.Root cause
dfs_statfs()allocatesfullpathwithdfs_normalize_path(NULL, path), uses it to find the mount point, and then returns without freeing the temporary path buffer. Other DFSv2 functions that normalize paths free the temporary path before returning.Scope
The fix stays in
dfs_statfs(), which owns the temporary path allocation. It does not change filesystemstatfscallbacks or mount lookup behavior.Closes #11495
Validation
git diff --checkgh search prs 'dfs_statfs fullpath rt_free' --repo RT-Thread/rt-thread --state open --limit 20 --json number,title,author,url,isDraftreturned no duplicate open PRs.bsp/qemu-vexpress-a9enables DFSv2, but localpython -m SCons -nstops because the configured toolchain path/usr/binis not available on this Windows machine and no localgccis installed.