iommu: Remove extra NULL check when call strtobool()
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Mon, 14 May 2018 16:22:25 +0000 (19:22 +0300)
committerJoerg Roedel <jroedel@suse.de>
Tue, 15 May 2018 14:27:48 +0000 (16:27 +0200)
commit7f9584df8495787393d8c18598c2b6eb03e647b0
treeb44cf441f3d101bc1d9af1e6e887671e92f77552
parent48e6f7652dd8c502005decb331910ca0d097c1a9
iommu: Remove extra NULL check when call strtobool()

strtobool() does check for NULL parameter already. No need to repeat.

While here, switch to kstrtobool() and unshadow actual error code
(which is still -EINVAL).

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/iommu.c