diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-07-21 21:41:38 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-08-01 04:53:59 +0400 |
| commit | 9e01d0c6f63a59cc756c0028e17effdbadee7227 (patch) | |
| tree | 04112025335600ae0c09f647803c55ef094db383 /drivers/char/hw_random/mxc-rnga.c | |
| parent | 69d2884debaa029ddcf9de4631c4c83249bc8c4d (diff) | |
| download | linux-9e01d0c6f63a59cc756c0028e17effdbadee7227.tar.xz | |
hwrng: mxc-rnga - Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char/hw_random/mxc-rnga.c')
| -rw-r--r-- | drivers/char/hw_random/mxc-rnga.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c index 19a12ac64a9e..6a86b6f56af2 100644 --- a/drivers/char/hw_random/mxc-rnga.c +++ b/drivers/char/hw_random/mxc-rnga.c @@ -164,7 +164,9 @@ static int __init mxc_rnga_probe(struct platform_device *pdev) goto out; } - clk_prepare_enable(mxc_rng->clk); + err = clk_prepare_enable(mxc_rng->clk); + if (err) + goto out; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); mxc_rng->mem = devm_ioremap_resource(&pdev->dev, res); |