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Re: [PATCH] ath10k: Fix return value for btcoex and peer stats debugfs

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On Tue, 2016-04-05 at 20:58 +0530, Mohammed Shafi Shajakhan wrote:
> From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
> 
> Return value is incorrect for btcoex and peer stats debugfs
> 'write' entries if the user provides a value that matches with
> the already available debugfs entry, this results in the debugfs
> entry getting stuck and the operation has to be terminated manually.
> Fix this by returning the appropriate return 'count' as we do it for
> other debugfs entries like pktlog etc

Not your code, but some of the xor uses are odd at best.

> diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
[]
> @@ -2122,7 +2122,7 @@ static ssize_t ath10k_write_btcoex(struct file *file,
>  	struct ath10k *ar = file->private_data;
>  	char buf[32];
>  	size_t buf_size;
> -	int ret = 0;
> +	int ret;
>  	bool val;
>  
>  	buf_size = min(count, (sizeof(buf) - 1));
> @@ -2142,8 +2142,10 @@ static ssize_t ath10k_write_btcoex(struct file *file,
>  		goto exit;
>  	}
>  
> -	if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val))
> +	if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {

xor on an int and a bool.

> @@ -2189,7 +2191,7 @@ static ssize_t ath10k_write_peer_stats(struct file *file,
>  	struct ath10k *ar = file->private_data;
>  	char buf[32];
>  	size_t buf_size;
> -	int ret = 0;
> +	int ret;
>  	bool val;
>  
>  	buf_size = min(count, (sizeof(buf) - 1));
> @@ -2209,8 +2211,10 @@ static ssize_t ath10k_write_peer_stats(struct file *file,
>  		goto exit;
>  	}
>  
> -	if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val))
> +	if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {

here too

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