linux-kernel - RE: [PATCH 1/2] bnx2x:Fix error handling for the function bnx2x_set_mutl

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Date:	Mon, 7 Mar 2016 14:50:36 +0000
From:	Ariel Elior <Ariel.Elior@...gic.com>
To:	Nicholas Krause <xerofoify@...il.com>
CC:	netdev <netdev@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/2] bnx2x:Fix error handling for the function
 bnx2x_set_mutl_gpio

> -----Original Message-----
> From: Nicholas Krause [mailto:xerofoify@...il.com]
> Sent: Monday, March 07, 2016 4:05 AM
> To: Ariel Elior <Ariel.Elior@...gic.com>
> Cc: netdev <netdev@...r.kernel.org>; linux-kernel <linux-kernel@...r.kernel.org>
> Subject: [PATCH 1/2] bnx2x:Fix error handling for the function bnx2x_set_mutl_gpio
> 
> This fixes the error handling for the function bnx2x_set_mutl_gpio
> for checking if the function bnx2x_acquire_hw_lock ran successfully
> by not returning a error code and if it does return the error code
> to this function's caller in addition to exiting from this function
> immediately due to this failure.
> 
> Signed-off-by: Nicholas Krause <xerofoify@...il.com>
> ---
>  drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> index c27af12..a55f1c2 100644
> --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
> @@ -2151,7 +2151,9 @@ int bnx2x_set_mult_gpio(struct bnx2x *bp, u8 pins, u32
> mode)
> 
>  	/* Any port swapping should be handled by caller. */
> 
> -	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
> +	rc = bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_GPIO);
> +	if (rc)
> +		return rc;
>  	/* read GPIO and mask except the float bits */
>  	gpio_reg = REG_RD(bp, MISC_REG_GPIO);
>  	gpio_reg &= ~(pins << MISC_REGISTERS_GPIO_FLOAT_POS);
> --
> 2.1.4
Thanks Nicholas.
Acked-by: Ariel Elior <ariel.elior@...gic.com>