diff options
Diffstat (limited to 'drivers/xen/pvcalls-front.c')
| -rw-r--r-- | drivers/xen/pvcalls-front.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c index 40caa92bff33..78804e71f9a6 100644 --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@ -805,7 +805,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags) pvcalls_exit(); return ret; } - map2 = kzalloc(sizeof(*map2), GFP_KERNEL); + map2 = kzalloc(sizeof(*map2), GFP_ATOMIC); if (map2 == NULL) { clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, (void *)&map->passive.flags); @@ -878,7 +878,7 @@ received: return ret; } -static unsigned int pvcalls_front_poll_passive(struct file *file, +static __poll_t pvcalls_front_poll_passive(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) @@ -935,12 +935,12 @@ static unsigned int pvcalls_front_poll_passive(struct file *file, return 0; } -static unsigned int pvcalls_front_poll_active(struct file *file, +static __poll_t pvcalls_front_poll_active(struct file *file, struct pvcalls_bedata *bedata, struct sock_mapping *map, poll_table *wait) { - unsigned int mask = 0; + __poll_t mask = 0; int32_t in_error, out_error; struct pvcalls_data_intf *intf = map->active.ring; @@ -958,12 +958,12 @@ static unsigned int pvcalls_front_poll_active(struct file *file, return mask; } -unsigned int pvcalls_front_poll(struct file *file, struct socket *sock, +__poll_t pvcalls_front_poll(struct file *file, struct socket *sock, poll_table *wait) { struct pvcalls_bedata *bedata; struct sock_mapping *map; - int ret; + __poll_t ret; pvcalls_enter(); if (!pvcalls_front_dev) { @@ -1103,7 +1103,7 @@ static int pvcalls_front_remove(struct xenbus_device *dev) kfree(map); } } - if (bedata->ref >= 0) + if (bedata->ref != -1) gnttab_end_foreign_access(bedata->ref, 0, 0); kfree(bedata->ring.sring); kfree(bedata); @@ -1128,6 +1128,8 @@ static int pvcalls_front_probe(struct xenbus_device *dev, } versions = xenbus_read(XBT_NIL, dev->otherend, "versions", &len); + if (IS_ERR(versions)) + return PTR_ERR(versions); if (!len) return -EINVAL; if (strcmp(versions, "1")) { |