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Input: soc_button_array - fix a crash during rmmod
authorLejun Zhu <lejun.zhu@linux.intel.com>
Wed, 23 Apr 2014 05:47:13 +0000 (22:47 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Wed, 23 Apr 2014 05:56:36 +0000 (22:56 -0700)
When the system has zero or one button available, trying to rmmod
soc_button_array will cause crash. Fix this by properly handling -ENODEV
in probe().

Signed-off-by: Lejun Zhu <lejun.zhu@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

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