[PATCH net v1] idpf: Fix vport IRQ name leak on request failure

[PATCH net v1] idpf: Fix vport IRQ name leak on request failure

[Yuho Choi]

idpf_vport_intr_req_irq() allocates a name for each vector IRQ before
calling request_irq(). On success, the name is released later through
kfree(free_irq()), but when request_irq() fails, the error path only
unwinds the previous vectors and the name for the failed one is leaked.

Free the allocated name on the request_irq() failure path, as done for
the mailbox IRQ in commit 9bff30482c10 ("idpf: Fix mailbox IRQ name leak
on request failure").

Fixes: bf9bf7042a38 ("idpf: avoid bloating &idpf_q_vector with big %NR_CPUS")
Signed-off-by: Yuho Choi <oss.patchbox@gmail.com>
---
Compile-tested only (x86_64 defconfig + CONFIG_IDPF=m, W=1).

 drivers/net/ethernet/intel/idpf/idpf_txrx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 4311ffa30bb1..e7d5e7923371 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -4073,6 +4073,7 @@ static int idpf_vport_intr_req_irq(struct idpf_vport *vport,
 		if (err) {
 			netdev_err(vport->netdev,
 				   "Request_irq failed, error: %d\n", err);
+			kfree(name);
 			goto free_q_irqs;
 		}
 

base-commit: f0100363d8c374bd8e9ea7c9ba02744f0b802ca4
-- 
2.43.0