lwn.git/drivers/hwtracing/intel_th/sth.c, branch v4.4.15Linux kernel documentation tree maintained by Jonathan Corbethttp://mirrors.hust.edu.cn/git/lwn.git/atom?h=v4.4.152015-10-17T06:25:48+00:00intel_th: Check for NULL instead of ERR_PTR2015-10-17T06:25:48+00:00Dan Carpenterdan.carpenter@oracle.com2015-10-16T14:09:13+00:00urn:sha1:73061da07d28ac6724bcd9ce4b51cf51a8b6b40e
devm_ioremap() returns NULL on error, it doesn't return an ERR_PTR,
which is what the current code does. This patch corrects these
checks.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
intel_th: Add Software Trace Hub driver2015-10-04T19:28:58+00:00Alexander Shishkinalexander.shishkin@linux.intel.com2015-09-22T12:47:17+00:00urn:sha1:f04e449fc76e7bfd1b8ed11967ab092d05355b6b
Software Trace Hub (STH) is a trace source device in the Intel TH
architecture, it generates data that then goes through the switch into
one or several output ports.
STH collects data from software sources using the stm device class
abstraction.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>