diff options
| author | Eric Long <eric.long@linaro.org> | 2016-02-17 17:51:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-03 06:23:23 +0200 |
| commit | 43ea28e71c2d54cd40eeb97fcdf71da38f84c963 (patch) | |
| tree | 0ea55518e7eeb55d1da9e3f4338a569a5056544d /drivers | |
| parent | 58af2f0f6fdfe07c031ecc2181428cfcdc63584b (diff) | |
coresight: etm4x: Check every parameter used by dma_xx_coherent.
[ Upstream commit 61390593f72377c3a8f41ef998462e2d3985adac ]
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.long@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index a57c7ec1661f..62f9d7372e3a 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; } |