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| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-05 11:21:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-11 06:56:46 -0300 |
| commit | 47677e51e2a4040c204d7971a5103592600185b1 (patch) | |
| tree | 58196e42f5ad37ee12333a69593d444f0d1e10de /drivers/media/usb/em28xx/em28xx-dvb.c | |
| parent | 88e4fcda55e07278fcf5f6eea684685ffc0633e2 (diff) | |
| download | linux-47677e51e2a4040c204d7971a5103592600185b1.tar.gz linux-47677e51e2a4040c204d7971a5103592600185b1.tar.bz2 linux-47677e51e2a4040c204d7971a5103592600185b1.zip | |
[media] em28xx: Only deallocate struct em28xx after finishing all extensions
We can't free struct em28xx while one of the extensions is still
using it.
So, add a kref() to control it, freeing it only after the
extensions fini calls.
Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-dvb.c')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-dvb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index d4986bdfbdc3..cacdca3a3412 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -1043,7 +1043,6 @@ static int em28xx_dvb_init(struct em28xx *dev) em28xx_info("Binding DVB extension\n"); dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL); - if (dvb == NULL) { em28xx_info("em28xx_dvb: memory allocation failed\n"); return -ENOMEM; @@ -1521,6 +1520,9 @@ static int em28xx_dvb_init(struct em28xx *dev) dvb->adapter.mfe_shared = mfe_shared; em28xx_info("DVB extension successfully initialized\n"); + + kref_get(&dev->ref); + ret: em28xx_set_mode(dev, EM28XX_SUSPEND); mutex_unlock(&dev->lock); @@ -1577,6 +1579,7 @@ static int em28xx_dvb_fini(struct em28xx *dev) em28xx_unregister_dvb(dvb); kfree(dvb); dev->dvb = NULL; + kref_put(&dev->ref, em28xx_free_device); } return 0; |