From: Alexey Khoroshilov Date: Fri, 23 Nov 2018 21:56:26 +0000 (-0500) Subject: media: DaVinci-VPBE: fix error handling in vpbe_initialize() X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=aa35dc3c71950e3fec3e230c06c27c0fbd0067f8;p=openwrt%2Fstaging%2Fblogic.git media: DaVinci-VPBE: fix error handling in vpbe_initialize() 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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c index e80d7806cc45..4766a7a23d16 100644 --- a/drivers/media/platform/davinci/vpbe.c +++ b/drivers/media/platform/davinci/vpbe.c @@ -718,7 +718,7 @@ 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); @@ -726,12 +726,15 @@ 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: