coresight tmc etr: Fix uninitialised variable

Variable 'paddr' can't be used if uninitialised but is nonetheless
confusing to some static checker.  As such simply initialise it to zero.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 8ee8c66f40021bd4769cba6c58483c5089b0ffde..f57199580c114019102e485902a715f4373a9172 100644 (file)
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -113,7 +113,7 @@ 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);