diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-09 13:24:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-09 13:24:00 -0700 |
| commit | 6f5410b688c6326a3a54feffed5119987187c357 (patch) | |
| tree | 6ceee879bc0c668b2e2a57bbe6433560646f6850 /include | |
| parent | 84836bf9739f93ca43d7b2b6bdda1ea1b8e3e0a4 (diff) | |
| parent | 15fd943af50dbc5f7f4de33835795c72595f7bf4 (diff) | |
Merge tag 'rpmsg-3.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg
Pull rpmsg fixes from Ohad Ben-Cohen:
"Fixing two (somewhat rare) endpoint-related race issues, both of which
were reported by Fernando Guzman Lugo."
* tag 'rpmsg-3.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg:
rpmsg: make sure inflight messages don't invoke just-removed callbacks
rpmsg: avoid premature deallocation of endpoints
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/rpmsg.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index a8e50e44203c..82a673905edb 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -38,6 +38,8 @@ #include <linux/types.h> #include <linux/device.h> #include <linux/mod_devicetable.h> +#include <linux/kref.h> +#include <linux/mutex.h> /* The feature bitmap for virtio rpmsg */ #define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ @@ -120,7 +122,9 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); /** * struct rpmsg_endpoint - binds a local rpmsg address to its user * @rpdev: rpmsg channel device + * @refcount: when this drops to zero, the ept is deallocated * @cb: rx callback handler + * @cb_lock: must be taken before accessing/changing @cb * @addr: local rpmsg address * @priv: private data for the driver's use * @@ -140,7 +144,9 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); */ struct rpmsg_endpoint { struct rpmsg_channel *rpdev; + struct kref refcount; rpmsg_rx_cb_t cb; + struct mutex cb_lock; u32 addr; void *priv; }; |