diff options
author | Eric Long <eric.long@linaro.org> | 2016-02-18 00:51:44 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-20 22:11:01 (GMT) |
commit | 61390593f72377c3a8f41ef998462e2d3985adac (patch) | |
tree | 614639fc1000121b815533f768b684e2e7da1394 /drivers | |
parent | bf16e5b8cdeabc1fe6565af0be475bb2084dc388 (diff) | |
download | linux-61390593f72377c3a8f41ef998462e2d3985adac.tar.xz |
coresight: etm4x: Check every parameter used by dma_xx_coherent.
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>
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 570d968..c4fa70e 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; } |