net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices
[ Upstream commit 422ae7d9 ] The probe() function is only used for the DP83822 PHY, leaving the private data pointer uninitialized for the smaller DP83825/26 models. While all uses of the private data structure are hidden in 82822 specific callbacks, configuring the interrupt is shared across all models. This causes a NULL pointer dereference on the smaller PHYs as it accesses the private data unchecked. Verifying the pointer avoids that. Fixes: 5dc39fd5 ("net: phy: DP83822: Add ability to advertise Fiber connection") Signed-off-by:Andre Kalb <andre.kalb@sma.de> Reviewed-by:
Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/Y9FzniUhUtbaGKU7@pc6682 Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
parent
18c18c21
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