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| author | Yufan Chen <yufan.chen@linux.dev> | 2026-03-29 00:32:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-11 14:29:54 +0200 |
| commit | 82f86111f0704ab2ded11a2033bc6cf0be3e09ea (patch) | |
| tree | dd68256ebcd2559fd31d1b345b9fa89835f747b3 /drivers/net/ntb_netdev.c | |
| parent | b69c4236255bd8de16cd876e58c6f0867d1d78b1 (diff) | |
net: ftgmac100: fix ring allocation unwind on open failure
commit c0fd0fe745f5e8c568d898cd1513d0083e46204a upstream.
ftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and
rx_scratch in stages. On intermediate failures it returned -ENOMEM
directly, leaking resources allocated earlier in the function.
Rework the failure path to use staged local unwind labels and free
allocated resources in reverse order before returning -ENOMEM. This
matches common netdev allocation cleanup style.
Fixes: d72e01a0430f ("ftgmac100: Use a scratch buffer for failed RX allocations")
Cc: stable@vger.kernel.org
Signed-off-by: Yufan Chen <yufan.chen@linux.dev>
Link: https://patch.msgid.link/20260328163257.60836-1-yufan.chen@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ntb_netdev.c')
0 files changed, 0 insertions, 0 deletions