]> git.karo-electronics.de Git - karo-tx-linux.git/commit
platform: Print the resource range if device failed to claim
authorChen Yu <yu.c.chen@intel.com>
Wed, 21 Dec 2016 09:24:55 +0000 (17:24 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 11 Jan 2017 08:29:33 +0000 (09:29 +0100)
commit8a18f4284ec94ec56189e7f14495359d3b892a52
tree209951c6bc4265097a8b79ec39d24d6bcffb8b6b
parenta0244a8df15d8caee8831872b6fc97b676cb15bd
platform: Print the resource range if device failed to claim

Sometimes we have the following error message:
 platform MSFT0101:00: failed to claim resource 1
 acpi MSFT0101:00: platform device creation failed: -16
But there is not enough information to figure out which resource range
failed to claim.

Thus print the resource range at first-place thus /proc/iomem or
ioports should tell us who already claimed this resource, then
the driver bug or incorrect resource assignment which is running
into this conflict can be diagnosed:
 platform MSFT0101:00: failed to claim resource 1: [mem 0xfed40000-0xfed40fff]
 acpi MSFT0101:00: platform device creation failed: -16

Suggested-by: Len Brown <lenb@kernel.org>
Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/base/platform.c