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ibmvnic: Unmap DMA login rsp buffer on send login fail 

If the LOGIN CRQ fails to send then we must DMA unmap the response
buffer. Previously, if the CRQ failed then the memory was freed without
DMA unmapping.

Fixes: c98d9cc417 ("ibmvnic: send_login should check for crq errors")
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230809221038.51296-2-nnac123@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nick Child 2023-08-09 17:10:35 -05:00 committed by Jakub Kicinski
parent db17ba719b
commit 411c565b4b
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/ibm/ibmvnic.c
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@ -4830,11 +4830,14 @@ static int send_login(struct ibmvnic_adapter *adapter)
if (rc) {
adapter->login_pending = false;
netdev_err(adapter->netdev, "Failed to send login, rc=%d\n", rc);
goto buf_rsp_map_failed;
goto buf_send_failed;
}
return 0;
buf_send_failed:
dma_unmap_single(dev, rsp_buffer_token, rsp_buffer_size,
DMA_FROM_DEVICE);
buf_rsp_map_failed:
kfree(login_rsp_buffer);
adapter->login_rsp_buf = NULL;