[PATCH 1/3] ti-st: st_kim: use ERR_PTR(-ENOMEM) instead of NULL

[Jürg Billeter]

This allows return of other error codes.

Signed-off-by: Jürg Billeter <j...@bitron.ch>
---
 drivers/misc/ti-st/st_kim.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 5027b8f..af71584 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -752,8 +752,11 @@ static struct ti_st_plat_data *get_platform_data(struct 
device *dev)
        int len;
 
        dt_pdata = kzalloc(sizeof(*dt_pdata), GFP_KERNEL);
-       if (!dt_pdata)
-               return NULL;
+
+       if (!dt_pdata) {
+               pr_err("Can't allocate device_tree platform data\n");
+               return ERR_PTR(-ENOMEM);
+       }
 
        dt_property = of_get_property(np, "dev_name", &len);
        if (dt_property)
@@ -773,10 +776,13 @@ static int kim_probe(struct platform_device *pdev)
        struct ti_st_plat_data  *pdata;
        int err;
 
-       if (pdev->dev.of_node)
+       if (pdev->dev.of_node) {
                pdata = get_platform_data(&pdev->dev);
-       else
+               if (IS_ERR(pdata))
+                       return PTR_ERR(pdata);
+       } else {
                pdata = pdev->dev.platform_data;
+       }
 
        if (pdata == NULL) {
                dev_err(&pdev->dev, "Platform Data is missing\n");
-- 
2.4.3

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