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net: marvell: prestera: fix memory leak in prestera_rxtx_switch_init()

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[ Upstream commit 519b58bbfa ]

When prestera_sdma_switch_init() failed, the memory pointed to by
sw->rxtx isn't released. Fix it. Only be compiled, not be tested.

Fixes: 501ef3066c ("net: marvell: prestera: Add driver for Prestera family ASIC devices")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Vadym Kochan <vadym.kochan@plvision.eu>
Link: https://lore.kernel.org/r/20221108025607.338450-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhengchao Shao 2022-11-08 10:56:07 +08:00 committed by Greg Kroah-Hartman
parent cf4853880e
commit 5333cf1b7f
1 changed files with 6 additions and 1 deletions
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7
drivers/net/ethernet/marvell/prestera/prestera_rxtx.c
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@ -771,6 +771,7 @@ static netdev_tx_t prestera_sdma_xmit(struct prestera_sdma *sdma,
int prestera_rxtx_switch_init(struct prestera_switch *sw) int prestera_rxtx_switch_init(struct prestera_switch *sw)
{ {
struct prestera_rxtx *rxtx; struct prestera_rxtx *rxtx;
int err;
rxtx = kzalloc(sizeof(*rxtx), GFP_KERNEL); rxtx = kzalloc(sizeof(*rxtx), GFP_KERNEL);
if (!rxtx) if (!rxtx)
@ -778,7 +779,11 @@ int prestera_rxtx_switch_init(struct prestera_switch *sw)
sw->rxtx = rxtx; sw->rxtx = rxtx;
return prestera_sdma_switch_init(sw); err = prestera_sdma_switch_init(sw);
if (err)
kfree(rxtx);
return err;
} }
void prestera_rxtx_switch_fini(struct prestera_switch *sw) void prestera_rxtx_switch_fini(struct prestera_switch *sw)