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author | 2024-04-30 18:46:45 +0100 | |
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committer | 2024-05-02 18:53:19 -0700 | |
commit | 4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b (patch) | |
tree | bc942f9d29bb39e7c272518471613071fa02458d /net/ieee802154 | |
parent | selftests/net: skip partial checksum packets in csum test (diff) | |
download | linux-4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b.tar.gz linux-4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b.tar.bz2 linux-4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b.zip |
net: dsa: mv88e6xxx: Correct check for empty list
Since commit a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO
busses") mv88e6xxx_default_mdio_bus() has checked that the
return value of list_first_entry() is non-NULL.
This appears to be intended to guard against the list chip->mdios being
empty. However, it is not the correct check as the implementation of
list_first_entry is not designed to return NULL for empty lists.
Instead, use list_first_entry_or_null() which does return NULL if the
list is empty.
Flagged by Smatch.
Compile tested only.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240430-mv88e6xx-list_empty-v3-1-c35c69d88d2e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ieee802154')
0 files changed, 0 insertions, 0 deletions