Messages in this thread Patch in this message | | | From | Mathieu Poirier <> | Subject | [PATCH 02/21] coresight: etm4x: Check every parameter used by dma_xx_coherent. | Date | Wed, 17 Feb 2016 17:51:44 -0700 |
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From: Eric Long <eric.long@linaro.org>
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> --- drivers/hwtracing/coresight/coresight-tmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index 570d96815f78..c4fa70ed14ce 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; } -- 2.1.4
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