Re: [PATCH 5/5] ipmi: Add missing annotation for ipmi_ssif_lock_cond() and ipmi_ssif_unlock_cond()

[Corey Minyard]

On Fri, Apr 03, 2020 at 05:05:05PM +0100, Jules Irenge wrote:
> Sparse reports a warning at ipmi_ssif_unlock_cond()
> 	and ipmi_ssif_lock_cond()
> 
> warning: context imbalance in ipmi_ssif_lock_cond()
> 	- wrong count at exit
>  warning: context imbalance in ipmi_ssif_unlock_cond()
> 	- unexpected unlock
> 
> The root cause is the missing annotation at ipmi_ssif_unlock_cond()
> 	and ipmi_ssif_lock_cond()
> 
> Add the missing __acquires(&ata_scsi_rbuf_lock)
> Add the missing __releases(&ata_scsi_rbuf_lock)

Yeah, this is good, I've included it in my tree.

-corey

> 
> Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
> ---
>  drivers/char/ipmi/ipmi_ssif.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
> index 22c6a2e61236..030e7c09e44f 100644
> --- a/drivers/char/ipmi/ipmi_ssif.c
> +++ b/drivers/char/ipmi/ipmi_ssif.c
> @@ -313,6 +313,7 @@ static int start_send(struct ssif_info *ssif_info,
>  
>  static unsigned long *ipmi_ssif_lock_cond(struct ssif_info *ssif_info,
>  					  unsigned long *flags)
> +	__acquires(&ssif_info->lock)
>  {
>  	spin_lock_irqsave(&ssif_info->lock, *flags);
>  	return flags;
> @@ -320,6 +321,7 @@ static unsigned long *ipmi_ssif_lock_cond(struct ssif_info *ssif_info,
>  
>  static void ipmi_ssif_unlock_cond(struct ssif_info *ssif_info,
>  				  unsigned long *flags)
> +	__releases(&ssif_info->lock)
>  {
>  	spin_unlock_irqrestore(&ssif_info->lock, *flags);
>  }
> -- 
> 2.24.1
>