* [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe()
@ 2012-12-02 10:12 Wei Yongjun
2012-12-05 23:57 ` Grant Likely
2013-01-16 7:07 ` Greg KH
0 siblings, 2 replies; 3+ messages in thread
From: Wei Yongjun @ 2012-12-02 10:12 UTC (permalink / raw)
To: alan, gregkh, jslaby, grant.likely, rob.herring
Cc: yongjun_wei, linux-serial, devicetree-discuss
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
In case of error, function of_clk_get() returns ERR_PTR()
and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
drivers/tty/serial/xilinx_uartps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 2be22a2..1eb4657 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -948,9 +948,9 @@ static int xuartps_probe(struct platform_device *pdev)
struct clk *clk;
clk = of_clk_get(pdev->dev.of_node, 0);
- if (!clk) {
+ if (IS_ERR(clk)) {
dev_err(&pdev->dev, "no clock specified\n");
- return -ENODEV;
+ return PTR_ERR(clk);
}
rc = clk_prepare_enable(clk);
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe()
2012-12-02 10:12 [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe() Wei Yongjun
@ 2012-12-05 23:57 ` Grant Likely
2013-01-16 7:07 ` Greg KH
1 sibling, 0 replies; 3+ messages in thread
From: Grant Likely @ 2012-12-05 23:57 UTC (permalink / raw)
To: Wei Yongjun, alan, gregkh, jslaby, rob.herring
Cc: yongjun_wei, linux-serial, devicetree-discuss
On Sun, 2 Dec 2012 05:12:43 -0500, Wei Yongjun <weiyj.lk@gmail.com> wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> In case of error, function of_clk_get() returns ERR_PTR()
> and never returns NULL. The NULL test in the return value
> check should be replaced with IS_ERR().
>
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
> ---
> drivers/tty/serial/xilinx_uartps.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
> index 2be22a2..1eb4657 100644
> --- a/drivers/tty/serial/xilinx_uartps.c
> +++ b/drivers/tty/serial/xilinx_uartps.c
> @@ -948,9 +948,9 @@ static int xuartps_probe(struct platform_device *pdev)
> struct clk *clk;
>
> clk = of_clk_get(pdev->dev.of_node, 0);
> - if (!clk) {
> + if (IS_ERR(clk)) {
> dev_err(&pdev->dev, "no clock specified\n");
> - return -ENODEV;
> + return PTR_ERR(clk);
> }
>
> rc = clk_prepare_enable(clk);
>
>
--
Grant Likely, B.Sc, P.Eng.
Secret Lab Technologies, Ltd.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe()
2012-12-02 10:12 [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe() Wei Yongjun
2012-12-05 23:57 ` Grant Likely
@ 2013-01-16 7:07 ` Greg KH
1 sibling, 0 replies; 3+ messages in thread
From: Greg KH @ 2013-01-16 7:07 UTC (permalink / raw)
To: Wei Yongjun
Cc: alan, jslaby, grant.likely, rob.herring, yongjun_wei,
linux-serial, devicetree-discuss
On Sun, Dec 02, 2012 at 05:12:43AM -0500, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> In case of error, function of_clk_get() returns ERR_PTR()
> and never returns NULL. The NULL test in the return value
> check should be replaced with IS_ERR().
>
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
> Acked-by: Grant Likely <grant.likely@secretlab.ca>
>
>
> ---
> drivers/tty/serial/xilinx_uartps.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
> index 2be22a2..1eb4657 100644
> --- a/drivers/tty/serial/xilinx_uartps.c
> +++ b/drivers/tty/serial/xilinx_uartps.c
> @@ -948,9 +948,9 @@ static int xuartps_probe(struct platform_device *pdev)
> struct clk *clk;
>
> clk = of_clk_get(pdev->dev.of_node, 0);
> - if (!clk) {
> + if (IS_ERR(clk)) {
> dev_err(&pdev->dev, "no clock specified\n");
> - return -ENODEV;
> + return PTR_ERR(clk);
> }
This patch doesn't apply at all to my tree, what am I doing wrong?
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-12-02 10:12 [PATCH -next] serial: xilinx_uartps: fix return value check in xuartps_probe() Wei Yongjun
2012-12-05 23:57 ` Grant Likely
2013-01-16 7:07 ` Greg KH
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