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| author | Ma Ke <make24@iscas.ac.cn> | 2024-07-25 10:29:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-11 12:58:01 +0200 |
| commit | 1e9fefa405d44627b82dab2481bc898e9af7dcec (patch) | |
| tree | 87930df6624bc173ae5c54f59cd7928457fb1218 /tools/perf/scripts/python/parallel-perf.py | |
| parent | 63f10d9a252561a9bb89cba345fcc87f4a3ab005 (diff) | |
net: usb: sr9700: fix uninitialized variable use in sr_mdio_read
commit 08f3a5c38087d1569e982a121aad1e6acbf145ce upstream.
It could lead to error happen because the variable res is not updated if
the call to sr_share_read_word returns an error. In this particular case
error code was returned and res stayed uninitialized. Same issue also
applies to sr_read_reg.
This can be avoided by checking the return value of sr_share_read_word
and sr_read_reg, and propagating the error if the read operation failed.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: c9b37458e956 ("USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Reviewed-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/parallel-perf.py')
0 files changed, 0 insertions, 0 deletions