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net: wwan: t7xx: destroy DMA pool on CLDMA late init failure

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t7xx_cldma_late_init() creates md_ctrl->gpd_dmapool before
initializing the TX and RX rings. If any ring initialization
fails, the error path frees the already initialized rings but
leaves the DMA pool allocated.

Destroy md_ctrl->gpd_dmapool on the late-init failure path
to avoid leaking the DMA pool.

Fixes: 39d439047f ("net: wwan: t7xx: Add control DMA interface")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20260621031714.3605022-1-haoxiang_li2024@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Haoxiang Li 2026-06-21 11:17:14 +08:00 committed by Jakub Kicinski
parent 6117098309
commit 2bd6f26d4c
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wwan/t7xx/t7xx_hif_cldma.c
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@ -1063,6 +1063,9 @@ static int t7xx_cldma_late_init(struct cldma_ctrl *md_ctrl)
while (i--)
t7xx_cldma_ring_free(md_ctrl, &md_ctrl->tx_ring[i], DMA_TO_DEVICE);
dma_pool_destroy(md_ctrl->gpd_dmapool);
md_ctrl->gpd_dmapool = NULL;
return ret;
}