The dma_alloc_coherent return an "void *" not an "void __iomen *".
It uses the wrong parameters when calls dma_free_coherent function.
The sparse tool output logs as the following:
coresight-tmc.c:199:23: expected void *<noident>
coresight-tmc.c:199:23: got void [noderef] <asn:2>*vaddr
coresight-tmc.c:336:30: warning: incorrect type in assignment
(different address spaces)
coresight-tmc.c:336:30: expected char *buf
coresight-tmc.c:336:30: got void [noderef] <asn:2>*
coresight-tmc.c:769:50: warning: incorrect type in argument 4
(different base types)
coresight-tmc.c:769:50: expected unsigned long long
[unsigned] [usertype] dma_handle
coresight-tmc.c:769:50: got restricted gfp_t
Signed-off-by: Eric Long <eric.l...@linaro.org>
---
drivers/hwtracing/coresight/coresight-tmc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c
b/drivers/hwtracing/coresight/coresight-tmc.c
index a57c7ec..5b052d1 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -124,7 +124,7 @@ struct tmc_drvdata {
bool reading;
char *buf;
dma_addr_t paddr;
- void __iomem *vaddr;
+ void *vaddr;
u32 size;
bool enable;
enum tmc_config_type config_type;
@@ -766,7 +766,7 @@ err_misc_register:
err_devm_kzalloc:
if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)
dma_free_coherent(dev, drvdata->size,
- &drvdata->paddr, GFP_KERNEL);
+ drvdata->vaddr, drvdata->paddr);
return ret;
}
@@ -778,7 +778,7 @@ static int tmc_remove(struct amba_device *adev)
coresight_unregister(drvdata->csdev);
if (drvdata->config_type == TMC_CONFIG_TYPE_ETR)
dma_free_coherent(drvdata->dev, drvdata->size,
- &drvdata->paddr, GFP_KERNEL);
+ drvdata->vaddr, drvdata->paddr);
return 0;
}
--
1.7.9.5
