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| author |   Larry Finger <Larry.Finger@lwfinger.net> | 2012-02-08 19:42:03 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-09 09:12:55 -0800 |
| commit | 86587b671bf87ed81d2d89cd1199af912402a05f (patch) | |
| tree | a4b45e66fdb5399a5082deadcf79f6a19ad0c346 /drivers/staging/rtl8712/rtl871x_io.c | |
| parent | staging: fix the build breakage cuased by telephony drivers (diff) | |
| download | linux-dev-86587b671bf87ed81d2d89cd1199af912402a05f.tar.xz linux-dev-86587b671bf87ed81d2d89cd1199af912402a05f.zip | |
staging: r8712u: Simplify semaphores
I am preparing to convert this driver from semaphore to mutex locking,
The first step has been to eliminate a number of semaphores that were
initialized but never used, and one whose only use was a single "up"
after initialization. A total of 9 semaphores were removed in this process.
One other change was to remove some inline semaphore routines that were
unused.
In addition, several cases had the following structure:
down()
if () {
...
}
up()
The locking overhead was reduced by moving the up/down inside the if
block.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8712/rtl871x_io.c')
| -rw-r--r-- | drivers/staging/rtl8712/rtl871x_io.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/staging/rtl8712/rtl871x_io.c b/drivers/staging/rtl8712/rtl871x_io.c index ca84ee02eacc..abc1c97378f7 100644 --- a/drivers/staging/rtl8712/rtl871x_io.c +++ b/drivers/staging/rtl8712/rtl871x_io.c @@ -131,7 +131,6 @@ uint r8712_alloc_io_queue(struct _adapter *adapter) pio_req = (struct io_req *)(pio_queue->free_ioreqs_buf); for (i = 0; i < NUM_IOREQ; i++) { _init_listhead(&pio_req->list); - sema_init(&pio_req->sema, 0); list_insert_tail(&pio_req->list, &pio_queue->free_ioreqs); pio_req++; } |