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net: pcs: xpcs: Return EINVAL in the internal methods 

[ Upstream commit f5151005d379d9ce42e327fd3b2d2aaef61cda81 ]

In particular the xpcs_soft_reset() and xpcs_do_config() functions
currently return -1 if invalid auto-negotiation mode is specified. That
value might be then passed to the generic kernel subsystems which require
a standard kernel errno value. Even though the erroneous conditions are
very specific (memory corruption or buggy driver implementation) using a
hard-coded -1 literal doesn't seem correct anyway especially when it comes
to passing it higher to the network subsystem or printing to the system
log.  Convert the hard-coded error values to -EINVAL then.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Serge Semin 2024-02-22 20:58:22 +03:00 committed by Greg Kroah-Hartman
parent cf21eb6a9f
commit 9470114dfa
1 changed files with 2 additions and 2 deletions
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4
drivers/net/pcs/pcs-xpcs.c
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@ -293,7 +293,7 @@ static int xpcs_soft_reset(struct dw_xpcs *xpcs,
dev = MDIO_MMD_VEND2;
break;
default:
return -1;
return -EINVAL;
}
ret = xpcs_write(xpcs, dev, MDIO_CTRL1, MDIO_CTRL1_RESET);
@ -891,7 +891,7 @@ int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface,
return ret;
break;
default:
return -1;
return -EINVAL;
}
if (compat->pma_config) {