diff options
Diffstat (limited to 'drivers/staging/gasket/gasket_interrupt.c')
| -rw-r--r-- | drivers/staging/gasket/gasket_interrupt.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/staging/gasket/gasket_interrupt.c b/drivers/staging/gasket/gasket_interrupt.c index 1cfbc120f228..225460c535d6 100644 --- a/drivers/staging/gasket/gasket_interrupt.c +++ b/drivers/staging/gasket/gasket_interrupt.c @@ -527,14 +527,16 @@ int gasket_interrupt_system_status(struct gasket_dev *gasket_dev) int gasket_interrupt_set_eventfd(struct gasket_interrupt_data *interrupt_data, int interrupt, int event_fd) { - struct eventfd_ctx *ctx = eventfd_ctx_fdget(event_fd); - - if (IS_ERR(ctx)) - return PTR_ERR(ctx); + struct eventfd_ctx *ctx; if (interrupt < 0 || interrupt >= interrupt_data->num_interrupts) return -EINVAL; + ctx = eventfd_ctx_fdget(event_fd); + + if (IS_ERR(ctx)) + return PTR_ERR(ctx); + interrupt_data->eventfd_ctxs[interrupt] = ctx; return 0; } @@ -545,6 +547,9 @@ int gasket_interrupt_clear_eventfd(struct gasket_interrupt_data *interrupt_data, if (interrupt < 0 || interrupt >= interrupt_data->num_interrupts) return -EINVAL; - interrupt_data->eventfd_ctxs[interrupt] = NULL; + if (interrupt_data->eventfd_ctxs[interrupt]) { + eventfd_ctx_put(interrupt_data->eventfd_ctxs[interrupt]); + interrupt_data->eventfd_ctxs[interrupt] = NULL; + } return 0; } |