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| author | Jakub Kicinski <kuba@kernel.org> | 2021-04-09 20:46:01 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-04-09 20:48:35 -0700 |
| commit | 8859a44ea0df92bccdc942ef15781ebbfe0ad9f3 (patch) | |
| tree | bffdd602a7d6ad5060df41789af75965f9d58270 /drivers/firewire/nosy.c | |
| parent | 6c5e6b4ccc1bb9ac56579a9aed25d517d2318be6 (diff) | |
| parent | 4e04e7513b0fa2fe8966a1c83fb473f1667e2810 (diff) | |
| download | linux-8859a44ea0df92bccdc942ef15781ebbfe0ad9f3.tar.gz linux-8859a44ea0df92bccdc942ef15781ebbfe0ad9f3.tar.bz2 linux-8859a44ea0df92bccdc942ef15781ebbfe0ad9f3.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:
MAINTAINERS
- keep Chandrasekar
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
- simple fix + trust the code re-added to param.c in -next is fine
include/linux/bpf.h
- trivial
include/linux/ethtool.h
- trivial, fix kdoc while at it
include/linux/skmsg.h
- move to relevant place in tcp.c, comment re-wrapped
net/core/skmsg.c
- add the sk = sk // sk = NULL around calls
net/tipc/crypto.c
- trivial
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/firewire/nosy.c')
| -rw-r--r-- | drivers/firewire/nosy.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/firewire/nosy.c b/drivers/firewire/nosy.c index 5fd6a60b6741..88ed971e32c0 100644 --- a/drivers/firewire/nosy.c +++ b/drivers/firewire/nosy.c @@ -346,6 +346,7 @@ nosy_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct client *client = file->private_data; spinlock_t *client_list_lock = &client->lynx->client_list_lock; struct nosy_stats stats; + int ret; switch (cmd) { case NOSY_IOC_GET_STATS: @@ -360,11 +361,15 @@ nosy_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return 0; case NOSY_IOC_START: + ret = -EBUSY; spin_lock_irq(client_list_lock); - list_add_tail(&client->link, &client->lynx->client_list); + if (list_empty(&client->link)) { + list_add_tail(&client->link, &client->lynx->client_list); + ret = 0; + } spin_unlock_irq(client_list_lock); - return 0; + return ret; case NOSY_IOC_STOP: spin_lock_irq(client_list_lock); |