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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-05-21 20:22:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:53:40 +0200 |
| commit | 7f0b77542e57adf955f1dce160863cb513471465 (patch) | |
| tree | 1a076ebcdb463cdd14ab8d6fb242d566f53229bc /drivers | |
| parent | a536c30966c1821536c2d902f637813e19f4e4ae (diff) | |
| download | linux-7f0b77542e57adf955f1dce160863cb513471465.tar.gz linux-7f0b77542e57adf955f1dce160863cb513471465.tar.bz2 linux-7f0b77542e57adf955f1dce160863cb513471465.zip | |
firmware: stratix10-svc: Fix a resource leak in an error handling path
[ Upstream commit d99247f9b542533ddbf87a3481a05473b8e48194 ]
If an error occurs after a successful 'kfifo_alloc()' call, it must be
undone by a corresponding 'kfifo_free()' call, as already done in the
remove function.
While at it, move the 'platform_device_put()' call to this new error
handling path and explicitly return 0 in the success path.
Fixes: b5dc75c915cd ("firmware: stratix10-svc: extend svc to support new RSU features")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0ca3f3ab139c53e846804455a1e7599ee8ae896a.1621621271.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/stratix10-svc.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index b485321189e1..b2b4ba240fb1 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -1026,24 +1026,32 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev) /* add svc client device(s) */ svc = devm_kzalloc(dev, sizeof(*svc), GFP_KERNEL); - if (!svc) - return -ENOMEM; + if (!svc) { + ret = -ENOMEM; + goto err_free_kfifo; + } svc->stratix10_svc_rsu = platform_device_alloc(STRATIX10_RSU, 0); if (!svc->stratix10_svc_rsu) { dev_err(dev, "failed to allocate %s device\n", STRATIX10_RSU); - return -ENOMEM; + ret = -ENOMEM; + goto err_free_kfifo; } ret = platform_device_add(svc->stratix10_svc_rsu); - if (ret) { - platform_device_put(svc->stratix10_svc_rsu); - return ret; - } + if (ret) + goto err_put_device; + dev_set_drvdata(dev, svc); pr_info("Intel Service Layer Driver Initialized\n"); + return 0; + +err_put_device: + platform_device_put(svc->stratix10_svc_rsu); +err_free_kfifo: + kfifo_free(&controller->svc_fifo); return ret; } |