Re: [PATCH 13/33] Input: bfin_rotary - Use 'dev' instead of dereferencing it and other changes

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On 01/18/2017 08:58 PM, Joe Perches wrote:
On Wed, 2017-01-18 at 12:35 -0800, Guenter Roeck wrote:
On Wed, Jan 18, 2017 at 11:39:52AM -0800, Dmitry Torokhov wrote:
On Wed, Jan 18, 2017 at 09:46:34AM -0800, Guenter Roeck wrote:
[]
diff --git a/drivers/input/misc/bfin_rotary.c b/drivers/input/misc/bfin_rotary.c
[]
@@ -141,25 +141,23 @@ static int bfin_rotary_probe(struct platform_device *pdev)

 	/* Basic validation */
 	if ((pdata->rotary_up_key && !pdata->rotary_down_key) ||
-	    (!pdata->rotary_up_key && pdata->rotary_down_key)) {
+	    (!pdata->rotary_up_key && pdata->rotary_down_key))

maybe just use ^

	if (!pdata->rotary_up_key ^ !pdata->rotary_down_key)

Interesting use case for a coccinelle rule.

To address the coccinelle related problem, I modified the rule to only apply
if the expression is in one line, and if the return statement is in the next
line. That works pretty well.

Guenter

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