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| author | Tomas Winkler <tomas.winkler@intel.com> | 2014-05-07 16:51:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 14:15:25 -0700 |
| commit | 84b3294a40c87e5c8bdaf05d9d3c3aff7e320453 (patch) | |
| tree | 176459ec36a5cee9959b8303214860d187218db5 /drivers/misc | |
| parent | ddb09754e6c7239e302c7b675df9bbd415f8de5d (diff) | |
| download | linux-84b3294a40c87e5c8bdaf05d9d3c3aff7e320453.tar.gz linux-84b3294a40c87e5c8bdaf05d9d3c3aff7e320453.tar.bz2 linux-84b3294a40c87e5c8bdaf05d9d3c3aff7e320453.zip | |
mei: fix memory leak of mei_clients array
we never freed the mei_clients array on driver shutdown
only on reset
add mei_hbm_reset function that wraps the hbm cleanup
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/mei/hbm.c | 46 | ||||
| -rw-r--r-- | drivers/misc/mei/hbm.h | 1 | ||||
| -rw-r--r-- | drivers/misc/mei/init.c | 2 |
3 files changed, 31 insertions, 18 deletions
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index b9a4bb5921f1..804106209d76 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -60,6 +60,34 @@ static int mei_cl_conn_status_to_errno(enum mei_cl_connect_status status) } /** + * mei_hbm_idle - set hbm to idle state + * + * @dev: the device structure + */ +void mei_hbm_idle(struct mei_device *dev) +{ + dev->init_clients_timer = 0; + dev->hbm_state = MEI_HBM_IDLE; +} + +/** + * mei_hbm_reset - reset hbm counters and book keeping data structurs + * + * @dev: the device structure + */ +void mei_hbm_reset(struct mei_device *dev) +{ + dev->me_clients_num = 0; + dev->me_client_presentation_num = 0; + dev->me_client_index = 0; + + kfree(dev->me_clients); + dev->me_clients = NULL; + + mei_hbm_idle(dev); +} + +/** * mei_hbm_me_cl_allocate - allocates storage for me clients * * @dev: the device structure @@ -71,9 +99,7 @@ static int mei_hbm_me_cl_allocate(struct mei_device *dev) struct mei_me_client *clients; int b; - dev->me_clients_num = 0; - dev->me_client_presentation_num = 0; - dev->me_client_index = 0; + mei_hbm_reset(dev); /* count how many ME clients we have */ for_each_set_bit(b, dev->me_clients_map, MEI_CLIENTS_MAX) @@ -82,9 +108,6 @@ static int mei_hbm_me_cl_allocate(struct mei_device *dev) if (dev->me_clients_num == 0) return 0; - kfree(dev->me_clients); - dev->me_clients = NULL; - dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%ld.\n", dev->me_clients_num * sizeof(struct mei_me_client)); /* allocate storage for ME clients representation */ @@ -135,17 +158,6 @@ bool mei_hbm_cl_addr_equal(struct mei_cl *cl, void *buf) } -/** - * mei_hbm_idle - set hbm to idle state - * - * @dev: the device structure - */ -void mei_hbm_idle(struct mei_device *dev) -{ - dev->init_clients_timer = 0; - dev->hbm_state = MEI_HBM_IDLE; -} - int mei_hbm_start_wait(struct mei_device *dev) { int ret; diff --git a/drivers/misc/mei/hbm.h b/drivers/misc/mei/hbm.h index 8e39cee408d0..683eb2835cec 100644 --- a/drivers/misc/mei/hbm.h +++ b/drivers/misc/mei/hbm.h @@ -50,6 +50,7 @@ static inline void mei_hbm_hdr(struct mei_msg_hdr *hdr, size_t length) } void mei_hbm_idle(struct mei_device *dev); +void mei_hbm_reset(struct mei_device *dev); int mei_hbm_start_req(struct mei_device *dev); int mei_hbm_start_wait(struct mei_device *dev); int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl); diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index b3f70eb17934..510f378b1f06 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -122,8 +122,8 @@ int mei_reset(struct mei_device *dev) mei_amthif_reset_params(dev); } + mei_hbm_reset(dev); - dev->me_clients_num = 0; dev->rd_msg_hdr = 0; dev->wd_pending = false; |