diff options
author | David S. Miller <davem@davemloft.net> | 2018-01-09 10:37:00 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2018-01-09 10:37:00 -0500 |
commit | a0ce093180f2bbb832b3f5583adc640ad67ea568 (patch) | |
tree | 62c9aca5be3566ea4810e4584a02870de8b953f8 /drivers/infiniband/core/device.c | |
parent | f4803f1b73f877a571be4c8e531dfcf190acc691 (diff) | |
parent | ef7f8cec80a0ba7bd00ece46844c8994117dc910 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/infiniband/core/device.c')
-rw-r--r-- | drivers/infiniband/core/device.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 30914f3baa5f..465520627e4b 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -134,7 +134,7 @@ static int ib_device_check_mandatory(struct ib_device *device) return 0; } -struct ib_device *__ib_device_get_by_index(u32 index) +static struct ib_device *__ib_device_get_by_index(u32 index) { struct ib_device *device; @@ -145,6 +145,22 @@ struct ib_device *__ib_device_get_by_index(u32 index) return NULL; } +/* + * Caller is responsible to return refrerence count by calling put_device() + */ +struct ib_device *ib_device_get_by_index(u32 index) +{ + struct ib_device *device; + + down_read(&lists_rwsem); + device = __ib_device_get_by_index(index); + if (device) + get_device(&device->dev); + + up_read(&lists_rwsem); + return device; +} + static struct ib_device *__ib_device_get_by_name(const char *name) { struct ib_device *device; |