From: Alexey Khoroshilov <khoroshilov@ispras.ru>
To: Markus Elfring <elfring@users.sourceforge.net>,
"Lad, Prabhakar" <prabhakar.csengg@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
ldv-project@linuxtesting.org
Subject: [PATCH] [media] DaVinci-VPBE: fix error handling in vpbe_initialize()
Date: Sat, 24 Nov 2018 00:56:26 +0300 [thread overview]
Message-ID: <1543010186-10244-1-git-send-email-khoroshilov@ispras.ru> (raw)
If vpbe_set_default_output() or vpbe_set_default_mode() fails,
vpbe_initialize() returns error code without releasing resources.
The patch adds error handling for that case.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/media/platform/davinci/vpbe.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c
index 18c035ef84cf..df1ae6b5c854 100644
--- a/drivers/media/platform/davinci/vpbe.c
+++ b/drivers/media/platform/davinci/vpbe.c
@@ -740,7 +740,7 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev)
if (ret) {
v4l2_err(&vpbe_dev->v4l2_dev, "Failed to set default output %s",
def_output);
- return ret;
+ goto fail_kfree_amp;
}
printk(KERN_NOTICE "Setting default mode to %s\n", def_mode);
@@ -748,12 +748,15 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev)
if (ret) {
v4l2_err(&vpbe_dev->v4l2_dev, "Failed to set default mode %s",
def_mode);
- return ret;
+ goto fail_kfree_amp;
}
vpbe_dev->initialized = 1;
/* TBD handling of bootargs for default output and mode */
return 0;
+fail_kfree_amp:
+ mutex_lock(&vpbe_dev->lock);
+ kfree(vpbe_dev->amp);
fail_kfree_encoders:
kfree(vpbe_dev->encoders);
fail_dev_unregister:
--
2.7.4
reply other threads:[~2018-11-23 21:57 UTC|newest]
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