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pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()

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In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails,
the function jumps to the out_scratch label without freeing the already
allocated dsaddrs list, leading to a memory leak.

Fix this by jumping to the out_err_drain_dsaddrs label, which properly
frees the dsaddrs list before cleaning up other resources.

Fixes: d67ae825a5 ("pnfs/flexfiles: Add the FlexFile Layout Driver")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Zilin Guan 2025-12-25 07:41:03 +00:00 committed by Trond Myklebust
parent cce0be6eb4
commit 0c72808365
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/flexfilelayout/flexfilelayoutdev.c
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@ -103,7 +103,7 @@ nfs4_ff_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
sizeof(struct nfs4_ff_ds_version),
gfp_flags);
if (!ds_versions)
goto out_scratch;
goto out_err_drain_dsaddrs;
for (i = 0; i < version_count; i++) {
/* 20 = version(4) + minor_version(4) + rsize(4) + wsize(4) +