Commit c7a5378a authored by Rengarajan S's avatar Rengarajan S Committed by Greg Kroah-Hartman
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misc: microchip: pci1xxxx: Resolve return code mismatch during GPIO set config 



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: 7d3e4d80 ("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: default avatarRengarajan S <rengarajan.s@microchip.com>
Link: https://lore.kernel.org/r/20241205133626.1483499-3-rengarajan.s@microchip.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 194f9f94

drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c

+1 −1
Original line number Diff line number Diff line
@@ -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);