diff options
| author | Michael Tretter <m.tretter@pengutronix.de> | 2021-09-08 16:03:11 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-10-20 17:52:50 +0300 |
| commit | dacc21d638c427a53448d91bd976ee6762822911 (patch) | |
| tree | df45b6d6e0040e9b237474bd7f7a04232040a7bf /drivers/media | |
| parent | 1ecda6393db4be44aba27a243e648dc98c9b92e3 (diff) | |
| download | linux-dacc21d638c427a53448d91bd976ee6762822911.tar.xz | |
media: allegro: fix module removal if initialization failed
If the module probe finished, but the firmware initialization failed,
removing the module must not revert the firmware initialization.
Add a field to track the status of the firmware initialization and only
roll it back, if the firmware was successfully initialized.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/allegro-dvt/allegro-core.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index 14a119b43bca..89d6de6082f6 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -142,6 +142,7 @@ struct allegro_dev { struct allegro_buffer suballocator; struct completion init_complete; + bool initialized; /* The mailbox interface */ struct allegro_mbox *mbox_command; @@ -3632,6 +3633,8 @@ static void allegro_fw_callback(const struct firmware *fw, void *context) "allegro codec registered as /dev/video%d\n", dev->video_dev.num); + dev->initialized = true; + release_firmware(fw_codec); release_firmware(fw); @@ -3678,6 +3681,8 @@ static int allegro_probe(struct platform_device *pdev) mutex_init(&dev->lock); + dev->initialized = false; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); if (!res) { dev_err(&pdev->dev, @@ -3748,11 +3753,13 @@ static int allegro_remove(struct platform_device *pdev) { struct allegro_dev *dev = platform_get_drvdata(pdev); - video_unregister_device(&dev->video_dev); - if (dev->m2m_dev) - v4l2_m2m_release(dev->m2m_dev); - allegro_mcu_hw_deinit(dev); - allegro_free_fw_codec(dev); + if (dev->initialized) { + video_unregister_device(&dev->video_dev); + if (dev->m2m_dev) + v4l2_m2m_release(dev->m2m_dev); + allegro_mcu_hw_deinit(dev); + allegro_free_fw_codec(dev); + } v4l2_device_unregister(&dev->v4l2_dev); |