ASoC: fsl: use strncpy() to prevent copying of over-long names

Use strncpy() instead of strcpy(). That's not a security issue, as the
source buffer is taken from DT nodes, but we should still enforce bound
checks. Spotted by Coverity.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 3b14531..ed866e9 100644 (file)
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -792,7 +792,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        asrc_priv->pdev = pdev;
-       strcpy(asrc_priv->name, np->name);
+       strncpy(asrc_priv->name, np->name, sizeof(asrc_priv->name) - 1);
 
        /* Get the addresses and IRQ */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index 8bcdfda..a645e29 100644 (file)
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -734,7 +734,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        esai_priv->pdev = pdev;
-       strcpy(esai_priv->name, np->name);
+       strncpy(esai_priv->name, np->name, sizeof(esai_priv->name) - 1);
 
        /* Get the addresses and IRQ */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);