From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: richard.gong@linux.intel.com, gregkh@linuxfoundation.org,
atull@kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH 3/4 v2] firmware: stratix10-svc: Fix some error handling paths in 'stratix10_svc_drv_probe()'
Date: Wed, 29 Apr 2020 08:52:52 +0200 [thread overview]
Message-ID: <0ff40f39de4deb63b03b363d0e0f3e3c8cccd62d.1588142343.git.christophe.jaillet@wanadoo.fr> (raw)
In-Reply-To: <cover.1588142343.git.christophe.jaillet@wanadoo.fr>
If an error occurs after calling 'svc_create_memory_pool()', the allocated
genpool should be destroyed with 'gen_pool_destroy()', as already done in
the remove function.
If an error occurs after calling 'kfifo_alloc()', the allocated memory
should be freed with 'kfifo_free()', as already done in the remove
function.
While at it, also move a 'platform_device_put()' call to the error handling
path.
Fixes: b5dc75c915cd ("firmware: stratix10-svc: extend svc to support new RSU features")
Fixes: 7ca5ce896524 ("firmware: add Intel Stratix10 service layer driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/firmware/stratix10-svc.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index de5870f76c5e..739004398877 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -1024,7 +1024,7 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev)
ret = kfifo_alloc(&controller->svc_fifo, fifo_size, GFP_KERNEL);
if (ret) {
dev_err(dev, "failed to allocate FIFO\n");
- return ret;
+ goto err_destroy_pool;
}
spin_lock_init(&controller->svc_fifo_lock);
@@ -1043,24 +1043,34 @@ 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 put_platform;
+
dev_set_drvdata(dev, svc);
pr_info("Intel Service Layer Driver Initialized\n");
+ return 0;
+
+put_platform:
+ platform_device_put(svc->stratix10_svc_rsu);
+err_free_kfifo:
+ kfifo_free(&controller->svc_fifo);
+err_destroy_pool:
+ gen_pool_destroy(genpool);
return ret;
}
--
2.25.1
next prev parent reply other threads:[~2020-04-29 6:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 6:52 [PATCH 0/4 v2] firmware: stratix10-svc: Fix some error handling code Christophe JAILLET
2020-04-29 6:52 ` [PATCH 1/4 v2] firmware: stratix10-svc: Fix genpool creation error handling Christophe JAILLET
2020-04-29 6:52 ` [PATCH 2/4 v2] firmware: stratix10-svc: Unmap some previously memremap'ed memory Christophe JAILLET
2020-05-05 14:43 ` Greg KH
2020-05-05 15:09 ` Christophe JAILLET
2020-04-29 6:52 ` Christophe JAILLET [this message]
2020-05-05 14:02 ` [PATCH 3/4 v2] firmware: stratix10-svc: Fix some error handling paths in 'stratix10_svc_drv_probe()' Richard Gong
2020-05-05 15:15 ` Christophe JAILLET
2020-06-26 19:37 ` [PATCH V3] firmware: stratix10-svc: Fix some error handling code Christophe JAILLET
2020-06-27 5:15 ` Greg KH
2020-06-27 5:15 ` Greg KH
2020-06-27 7:31 ` Marion & Christophe JAILLET
2020-06-27 8:03 ` Greg KH
2020-04-29 6:52 ` [PATCH 4/4 v2] firmware: stratix10-svc: Slightly simplify code Christophe JAILLET
2020-05-01 15:40 ` Richard Gong
2020-05-01 15:48 ` Christophe JAILLET
2020-05-01 16:55 ` Richard Gong
2020-05-02 8:49 ` Christophe JAILLET
2020-05-05 14:18 ` Richard Gong
2020-05-06 10:04 ` Dan Carpenter
2020-04-29 11:51 [PATCH 3/4 v2] firmware: stratix10-svc: Fix some error handling paths in stratix10_svc_drv_probe() Markus Elfring
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