crypto: omap-aes - don't treat NULL clk as an error

clk_get() returns a struct clk cookie to the driver and some platforms
may return NULL if they only support a single clock.  clk_get() has only
failed if it returns a ERR_PTR() encoded pointer.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-and-tested-by: Tobias Karnat <tobias.karnat@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index add2a1a72ba4c030e892f483a49686bc2e563c1f..5b970d9e99567219d69b22564b8287e1bcbc50d6 100644 (file)
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -839,9 +839,9 @@ static int omap_aes_probe(struct platform_device *pdev)
 
        /* Initializing the clock */
        dd->iclk = clk_get(dev, "ick");
-       if (!dd->iclk) {
+       if (IS_ERR(dd->iclk)) {
                dev_err(dev, "clock intialization failed.\n");
-               err = -ENODEV;
+               err = PTR_ERR(dd->iclk);
                goto err_res;
        }