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misc: microchip: pci1xxxx: Resolve return code mismatch during GPIO set config

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BugLink: https://bugs.launchpad.net/bugs/2106770

commit c7a5378a0f707686de3ddb489f1653c523bb7dcc upstream.

Driver returns -EOPNOTSUPPORTED on unsupported parameters case in set
config. Upper level driver checks for -ENOTSUPP. Because of the return
code mismatch, the ioctls from userspace fail. Resolve the issue by
passing -ENOTSUPP during unsupported case.

Fixes: 7d3e4d807d ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Cc: stable <stable@kernel.org>
Signed-off-by: Rengarajan S <rengarajan.s@microchip.com>
Link: https://lore.kernel.org/r/20241205133626.1483499-3-rengarajan.s@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Rengarajan S
2024-12-05 19:06:26 +05:30
committed by Mehmet Basaran
parent 44fea94295
commit af9cf4a8a1
1 changed files with 1 additions and 1 deletions
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drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c
+1 -1
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@@ -148,7 +148,7 @@ static int pci1xxxx_gpio_set_config(struct gpio_chip *gpio, unsigned int offset,
pci1xxx_assign_bit(priv->reg_base, OPENDRAIN_OFFSET(offset), (offset % 32), true);
break;
default:
ret = -EOPNOTSUPP;
ret = -ENOTSUPP;
break;
}
spin_unlock_irqrestore(&priv->lock, flags);