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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-21 23:43:39 +0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-24 23:31:46 +1100 |
| commit | 5f58cad1e4c65bebee34292696c6d2105eeb2027 (patch) | |
| tree | 2e83ebfcdff8459ed1ec5f5a0da6dd4776faa2d2 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 295faa17722a11cac8dbf51e4c9f9405a5e07ef1 (diff) | |
ocxl: fix pci device refcount leak when calling get_function_0()
get_function_0() calls pci_get_domain_bus_and_slot(), as comment
says, it returns a pci device with refcount increment, so after
using it, pci_dev_put() needs be called.
Get the device reference when get_function_0() is not called, so
pci_dev_put() can be called in the error path and callers
unconditionally. And add comment above get_dvsec_vendor0() to tell
callers to call pci_dev_put().
Fixes: 87db7579ebd5 ("ocxl: control via sysfs whether the FPGA is reloaded on a link reset")
Suggested-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221121154339.4088935-1-yangyingliang@huawei.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions