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| author | Christoph Jaeger <email@christophjaeger.info> | 2014-08-04 14:54:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-16 12:23:12 -0700 |
| commit | a9686e786896297f9f1d74a2cac4ffccc7b3e50e (patch) | |
| tree | 3b3f32c7c7be7c8126855dbdee7a0e226d3718dc /drivers/staging/ozwpan/ozcdev.c | |
| parent | a7ae725c9295d9076c889bbb75f83cd8e053bfb6 (diff) | |
| download | op-kernel-dev-a9686e786896297f9f1d74a2cac4ffccc7b3e50e.zip op-kernel-dev-a9686e786896297f9f1d74a2cac4ffccc7b3e50e.tar.gz | |
staging: ozwpan: Simplify app interface
Simplify the somewhat overcomplicated application interface; improves
readability and saves a bunch of lines.
Use designated struct initializers for clarity.
Signed-off-by: Christoph Jaeger <email@christophjaeger.info>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/ozwpan/ozcdev.c')
| -rw-r--r-- | drivers/staging/ozwpan/ozcdev.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index f82e12c..c73d396 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -49,11 +49,11 @@ static struct oz_serial_ctx *oz_cdev_claim_ctx(struct oz_pd *pd) { struct oz_serial_ctx *ctx; - spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); - ctx = (struct oz_serial_ctx *)pd->app_ctx[OZ_APPID_SERIAL-1]; + spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL]); + ctx = (struct oz_serial_ctx *) pd->app_ctx[OZ_APPID_SERIAL]; if (ctx) atomic_inc(&ctx->ref_count); - spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); + spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL]); return ctx; } @@ -182,8 +182,8 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf, app_hdr->app_id = OZ_APPID_SERIAL; if (copy_from_user(app_hdr+1, buf, count)) goto out; - spin_lock_bh(&pd->app_lock[OZ_APPID_USB-1]); - ctx = (struct oz_serial_ctx *)pd->app_ctx[OZ_APPID_SERIAL-1]; + spin_lock_bh(&pd->app_lock[OZ_APPID_USB]); + ctx = (struct oz_serial_ctx *) pd->app_ctx[OZ_APPID_SERIAL]; if (ctx) { app_hdr->elt_seq_num = ctx->tx_seq_num++; if (ctx->tx_seq_num == 0) @@ -193,7 +193,7 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf, ei = NULL; spin_unlock(&eb->lock); } - spin_unlock_bh(&pd->app_lock[OZ_APPID_USB-1]); + spin_unlock_bh(&pd->app_lock[OZ_APPID_USB]); out: if (ei) { count = 0; @@ -436,14 +436,14 @@ int oz_cdev_start(struct oz_pd *pd, int resume) return -ENOMEM; atomic_set(&ctx->ref_count, 1); ctx->tx_seq_num = 1; - spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); - old_ctx = pd->app_ctx[OZ_APPID_SERIAL-1]; + spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL]); + old_ctx = pd->app_ctx[OZ_APPID_SERIAL]; if (old_ctx) { - spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); + spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL]); kfree(ctx); } else { - pd->app_ctx[OZ_APPID_SERIAL-1] = ctx; - spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); + pd->app_ctx[OZ_APPID_SERIAL] = ctx; + spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL]); } spin_lock(&g_cdev.lock); if ((g_cdev.active_pd == NULL) && @@ -468,10 +468,10 @@ void oz_cdev_stop(struct oz_pd *pd, int pause) oz_dbg(ON, "Serial service paused\n"); return; } - spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); - ctx = (struct oz_serial_ctx *)pd->app_ctx[OZ_APPID_SERIAL-1]; - pd->app_ctx[OZ_APPID_SERIAL-1] = NULL; - spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]); + spin_lock_bh(&pd->app_lock[OZ_APPID_SERIAL]); + ctx = (struct oz_serial_ctx *) pd->app_ctx[OZ_APPID_SERIAL]; + pd->app_ctx[OZ_APPID_SERIAL] = NULL; + spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL]); if (ctx) oz_cdev_release_ctx(ctx); spin_lock(&g_cdev.lock); |
