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authorRodrigo Vivi <rodrigo.vivi@intel.com>2018-07-23 09:13:12 -0700
committerRodrigo Vivi <rodrigo.vivi@intel.com>2018-07-23 09:13:12 -0700
commitc74a7469f97c0f40b46e82ee979f9fb1bb6e847c (patch)
treef2690a1a916b73ef94657fbf0e0141ae57701825 /drivers/hwtracing/coresight/coresight-tmc-etr.c
parent6f15a7de86c8cf2dc09fc9e6d07047efa40ef809 (diff)
parent500775074f88d9cf5416bed2ca19592812d62c41 (diff)
Merge drm/drm-next into drm-intel-next-queued
We need a backmerge to get DP_DPCD_REV_14 before we push other i915 changes to dinq that could break compilation. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc-etr.c')
-rw-r--r--drivers/hwtracing/coresight/coresight-tmc-etr.c20
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 68fbc8f7450e..02f747afa2ba 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -1,18 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright(C) 2016 Linaro Limited. All rights reserved.
* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/coresight.h>
@@ -124,10 +113,9 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
bool used = false;
unsigned long flags;
void __iomem *vaddr = NULL;
- dma_addr_t paddr;
+ dma_addr_t paddr = 0;
struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
-
/*
* If we don't have a buffer release the lock and allocate memory.
* Otherwise keep the lock and move along.
@@ -164,11 +152,11 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev)
goto out;
/*
- * If drvdata::buf == NULL, use the memory allocated above.
+ * If drvdata::vaddr == NULL, use the memory allocated above.
* Otherwise a buffer still exists from a previous session, so
* simply use that.
*/
- if (drvdata->buf == NULL) {
+ if (drvdata->vaddr == NULL) {
used = true;
drvdata->vaddr = vaddr;
drvdata->paddr = paddr;