diff options
| author | Elena Reshetova <elena.reshetova@intel.com> | 2017-03-06 11:20:58 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-05 15:25:54 -0300 |
| commit | a8d8e38a9337cc6b46ef6c66db65130fb61050dd (patch) | |
| tree | a490fbd54b57e96622437f944c7e180ae96f49ac | |
| parent | 6eae60c5a0f05e0a9be01d6520d6e3017edc9c0d (diff) | |
[media] cx88: convert struct cx88_core.refcount from atomic_t to refcount_t
refcount_t is better suitable for counting references than atomic_t.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | drivers/media/pci/cx88/cx88-cards.c | 2 | ||||
| -rw-r--r-- | drivers/media/pci/cx88/cx88-core.c | 4 | ||||
| -rw-r--r-- | drivers/media/pci/cx88/cx88.h | 3 |
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/pci/cx88/cx88-cards.c b/drivers/media/pci/cx88/cx88-cards.c index 61e1803882d9..73cc7a67a8bc 100644 --- a/drivers/media/pci/cx88/cx88-cards.c +++ b/drivers/media/pci/cx88/cx88-cards.c @@ -3670,7 +3670,7 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr) if (!core) return NULL; - atomic_inc(&core->refcount); + refcount_set(&core->refcount, 1); core->pci_bus = pci->bus->number; core->pci_slot = PCI_SLOT(pci->devfn); core->pci_irqmask = PCI_INT_RISC_RD_BERRINT | PCI_INT_RISC_WR_BERRINT | diff --git a/drivers/media/pci/cx88/cx88-core.c b/drivers/media/pci/cx88/cx88-core.c index 973a9cd4c635..8bfa5b7ed91b 100644 --- a/drivers/media/pci/cx88/cx88-core.c +++ b/drivers/media/pci/cx88/cx88-core.c @@ -1052,7 +1052,7 @@ struct cx88_core *cx88_core_get(struct pci_dev *pci) mutex_unlock(&devlist); return NULL; } - atomic_inc(&core->refcount); + refcount_inc(&core->refcount); mutex_unlock(&devlist); return core; } @@ -1073,7 +1073,7 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci) release_mem_region(pci_resource_start(pci, 0), pci_resource_len(pci, 0)); - if (!atomic_dec_and_test(&core->refcount)) + if (!refcount_dec_and_test(&core->refcount)) return; mutex_lock(&devlist); diff --git a/drivers/media/pci/cx88/cx88.h b/drivers/media/pci/cx88/cx88.h index 115414cf520f..6777926f20f2 100644 --- a/drivers/media/pci/cx88/cx88.h +++ b/drivers/media/pci/cx88/cx88.h @@ -24,6 +24,7 @@ #include <linux/i2c-algo-bit.h> #include <linux/videodev2.h> #include <linux/kdev_t.h> +#include <linux/refcount.h> #include <media/v4l2-device.h> #include <media/v4l2-fh.h> @@ -339,7 +340,7 @@ struct cx8802_dev; struct cx88_core { struct list_head devlist; - atomic_t refcount; + refcount_t refcount; /* board name */ int nr; |